10/22 Conversion Kit
Note: This page
is NOT intended to be a definitive technical page about the 10/22, the AR-15 or
the Nordic AR22 Kit. I am not
qualified to do that. I just wanted to show some nice pics of the build process
and add some commentary here and there to clarify some of the steps. Following the pics
you will find a description of the parts used and a source table. My son Ian and
I did most of the work together - but I did the trickier metal working stuff.
Nordic's assembly instructions for the AR22 receiver
kit. NOTE: I added
comments about Allen wrench sizes and also about shimming the receiver (.035"
indicates OUR particular gun)
Most of the parts laid out for inspection. The stock
10/22 looks so.... World War II. I should have used a lighter back ground for
Before and after trimming the Nordic fore arm adaptor
to eliminate the "AR Gap" that prevents the Yankee Hill Machine fore arm nut and
arm from screwing nearly flush. We used a hacksaw and a file, followed by
increasing grits of sandpaper on a sanding block.
This pic shows the original large AR Gap, and the
improved version. If you like an authentic gap there, skip this step.
Ian checks the pull on the OEM trigger using our
nifty Lyman digital gage - it was about 800 pounds if I remember correctly, and
The aluminum Tactical Solutions barrel shank comes
slightly oversized and must be sanded to the correct OD for a snug fit into the
Ian masks off the barrel to prevent damaging the
finish during handling.
This particular barrel required that all of the
anodizing be removed before it would fit - about 0.002 inches removed. We left a
little extra coating right at the shoulder to help the barrel "snug up" as it
went all the way home into the receiver. We used a rubber mallet and
VERY light tapping, making sure that the bottom
flat area was aligned with the V block ledge on the receiver. We also made sure
the extractor slot lined up with the extractor.
The Hornet teflon recoil buffer is installed. After a
couple of hundred rounds this was really smashed, so we had to cut it out... we
decided to go back to the Ruger steel pin for now, until we can find a tougher
The new Hornet trigger assembly went in next. It had
a very pleasant, crisp 5 pound pull, with no over travel. Note the Hornet mag
Ian installs the Nordic rail and the Nordic Upper
onto the Ruger receiver with the four small 6-48 scope screws. We left out the
Loctite for now. Later these screws will get a little dab of Blue.
The Upper is complete....
... and so is the Lower. The gap between the Upper
and Lower is normal. Getting the Ruger receiver to mate with the Nordic parts
was a little tricky, but it gets easier after a few times. The Lower has nylon
alignment screws front and back to lock the Ruger receiver solidly into the
Nordic receiver. The fore arm adaptor is held to the rear parts with two large
Allen screws. The threaded YHM adaptor went on with blue Loctite.
The CAA grip contour did not match exactly - we filed
and sanded the front corner to clear the trigger guard.
Your AR-15 grip screw "MAY POSSIBLY" contact the
trigger housing as shown, preventing the grip from seating fully. If so, install
washers under the head or shorten the screw. Ours was fine when installed.
Next we installed the CAA telescoping stock. The
notched retaining ring nut must be secured with a hook spanner or a special AR
tool. Don't pound it tight with a punch, even a brass one.
The Yankee Hill Machine retaining ring and fore arm went on next. Since there is
no gas tube like in a real AR, alignment is up to the installer. After adding
blue Loctite to the adaptor threads, we made sure that the accessory rail
locations (pre-drilled and tapped) were located at 0 and 90 degrees, and let the
gun sit undisturbed overnight for the thread sealer to set up. The ring nut does
not need to be torqued tight - just add some Loctite and snug it down.
Next the cheapo Chinese holosight goes on the rail.
We found that the sight was too low for use with the adjustable cheek piece on
the stock, so later we added a 3/4 inch riser. Take a close look at the barrel
and you will see it drooping. Time for a fix. According to Nordic, all Ruger
receivers are different, and you may or may not experience this. Fortunately our
barrel was aligned left to right, and just needed to be raised.
First we tried installing an adjustable Skeeter's
Modified V Block. That helped a little but didn't really fix the problem. A
search of Rimfire Central found the cure;
We used a laminated or "peelable" brass shim, which was actually an aircraft
part from John's junk box, left over from his days as an aircraft mechanic.
First we loosened the lower barrel bolt and moved the receiver and barrel
upwards until it was perfectly centered in the end of the fore arm. Then we
measured the gap below the V block - it was 0.035 inches on this gun. After
trimming and peeling layers, we installed the brass shim and retightened the
barrel bolt. The next time we strip the rifle, we will glue the shim in place
with some adhesive so it can't get lost.
Another view of the shim repair. With the barrel
centered, we could then install the YHM end cap to fill the large "hole" in the
end of the fore arm.
Shims Just for your education....
Within the limitations of the scope, this rifle is
very accurate and an absolute hoot to shoot. It really likes Mini-Mags, but it
digests most copper plated bulk ammo fairly well. Most problems we have are due
to aftermarket high capacity mags rather than ammo choice.
We have found that the TacSol muzzle break likes to
loosen - it's a good idea to check it by hand every few mags, with the gun
UNLOADED and chamber empty.
Parts List for THIS
Nordic 10/22 build
Click the Hyperlink to take you to the product manufacturer (or
sometimes to a vendor
site). All product descriptions are directly quoted from the manufacturer or
||Where I bought the part
||What I paid, not
Nordic AR-1022 Kit at Gunkings.com (Note: Nordic Products,
does not have a firearms specific page, as of 06/08.)
A new and unique stock for your Ruger®
Doesn’t just look like an AR-15®, it
looks AND feels like an AR-15! In fact, this stock is ergonomically
identical to your AR-15 rifle.
Drop in assembly, no gunsmithing
Accepts any AR-15 Butt stock, hand
grip and Free Float tube, as well as any factory or after market barrels
made for the 10/22
Excellent for Training!
3 pieces included: Main Body, Scope
Rail & Forearm Adaptor
AR-15 Pistol Grip, 6 Piece Interchangeble
interchangeable pistol grip for M16/AR15 and similar type firearms. Grip
incorporates multiple finger groove and palm swell inserts (3 each) allowing
the user to customize their grip to fit all hand sizes for maximum comfort
I handled a beautiful
AR-15 varmint rifle at a gun shop with these CAA parts installed, and they felt
wonderful and looked great. They are a little more costly than the junky AR
"toy" parts, but not nearly as much as the hardcore tactical parts. They are
solidly designed, have no sharp exposed edges, they work smoothly and have a
very nice tactile feel. Made in Israel.
CAA AR-15 6
Position Collapsable Stock w/ Tube Ass'y
NTOA (National Tactical Officers Association) tested and
Six-position collapsible stock with rubber non-slip recoil pad and
skeletonized design features a Picatinny rail and storage compartment for
CR123 batteries (4 total) or other small items. Ambidextrous design is
easily achieved by switching the battery compartment lid and Picatinny rail.
Two ultrasonically welded metal inserts allow for the addition of optional
quick release sling adaptors (PBSS).
Cheaper Than Dirt
Adjustable Cheek Piece
Clamps onto CBS Picatinny rail
Height adjustment for eye alignment with optics
Horizontal adjustment along Picatinny rail
Made from reinforced polymer
Customizable Free Float Forearm, YHM-9430A, 9.675 inch, Specter Length
Our customizable tubes come in 3
lengths: Carbine, Specter and Rifle. These tubes are a great addition to any
firearm just as they are. They feature slotted heat vents, mounting point
for our Bipod Stud (YHM-262) and they accept our Forearm End Caps (YHM-9484A
or YHM-9484B sold separately). Each tube is drilled and tapped at 45 degree
angles to accept our custom rails at 8 different positions.
I didn't like the "Radical Tactical" look of the
four rail forearms, but I did need to be able to add a rail here and there for
future upgrades like a fore end grip. This new slotted aluminum forearm is
drilled every 45 degrees and is ready for accessory rails in lengths from a
couple of inches to full length. It will accept a sling swivel stud so I can
easily mount a bipod. The forearm is sold through Yankee Hill only as a kit with
rails - I found a mid-length model (available separately with no rails).
Live to shoot
Forearm End Cap, YHN-9484-B, 1.125 inch ID
Use these screw-in end caps to dress up
and provide protection for the end of your YHM forearm. Does not interfere
with the free floating of your barrel and helps keep out debris. Drilled to
allow for proper heat venting.
(Qty 2) YHM
Low Profile Rail Cover Black Long, YHM-9701
These rubber panels snap on tightly to
add comfort and protection to your YHM railed forearm. Available in 3
different lengths and in 2 different colors, Black or Coyote Brown.
Hornet Custom "B" Trigger Group for 10/22
"The Hornet Trigger
Guard Assembly includes these special replacement parts:
- Hand polished and honed Hammer for a light,
smooth, trigger release
- Lightweight Trigger Return Spring and
Custom Radius Trigger Return Plunger polished for smoothness
- Hornet Custom Sear and Disconnector honed
for minimal positive engagement consistent with safety.
- Automatic Bolt Release eliminating two-hand
operation - just pull back and release
- Hornet Custom "B" Extended Magazine Release
- push forward and the magazine easily drops away - no more convoluted
pinching to operate the release.
- Custom hammer, sear, and disconnector pins
to eliminate most of the trigger play.
- All parts are fitted, lubricated, and
Unlike the other three trigger suppliers for the 10/22, Hornet uses the stock
Ruger housing and parts. modifies and tunes them, and offers them for a "C
note". Rather than buying aftermarket internal parts and having to install and
tune them myself, I opted for a complete, range tested replacement trigger group
(polymer, like the one in my 10/22) with all the upgrades, including a custom
trigger return plunger, over travel screw, auto bolt release, and fitted action
pins (my OEM mag release pin fell out if you turned the housing sideways!).
Hornet sometimes offers up to $30 for your old serviceable Ruger trigger
Hornet Over-Travel Trigger Option
This is an Over-Travel trigger option
for the Custom-B to Custom-S trigger group. A pre-set over-travel adjustable
set screw improves accuracy by limiting movement after the trigger release,
plus it has a quicker reset and eliminates trigger play after the release.
It is primarily a feature for target-shooters. Color same as that of the
base trigger group, black or silver. Red trigger color available separately
at additonal cost. Not available as a separate item. Hex key included.
Hornet Custom Recoil Bolt Buffers (pr)
Our solid white Teflon bolt buffer
replaces the standard factory steel pin (Ruger Part #B-48) located at the
rear of the receiver. Eliminates annoying bolt cycling noise during shooting
when the bolt slams into the factory stop pin - also reduces impact stresses
on the receiver. Easy installation, no special tools required. Drift-in from
right side-to-left. Same S/H for multiple buffer orders.
Note: For rimfire 22 LR and
high-velocity LR. Not for use with .17HM2 Mach2 or .17HMR or Ruger 10/22
Magnum. Lifetime warranty.
Tactical Solutions 10/22 22LR Barrel, 16.5 inches, Matte Black Threaded
The Tac Sol rimfire barrel is an ultra
lightweight replacement barrel for the Ruger 10/.22 semi automatic rifle.
Each 10/.22 barrel is precision machined from solid aircraft aluminum
Lengths and Weights: 16.5”
Liner: Premium ‘button’ rifled
Twist Rate: 1 in 16
Colors Available: Red, Blue, Purple,
Olive Drab Green, Black, Gray
Matte Finish is available for Olive
Drab Green and Black colors
10/.22 barrels are produced with
flutes and are available with a threaded end (Threaded end available in
Matte OD Green and Matte Black only
JOHN'S COMMENT: This barrel gets great
reviews, is accurate and very light, looks WAY cool, and it's threaded so I can
add a suppressor when I finally acquire one. It has a button rifled match chrome
moly liner and match chamber, so I can't shoot Stingers because of the extra
case length, but with the factory recommended Mini-Mags (my favorite
"affordable" ammo - my CZ453 loves it) the TacSol barrel is capable of better
than 0.5 MOA accuracy. This barrel was really hard to find - most vendors
indicated that it was back-ordered, but Cables had it in stock.... the downside
being that I had to pay sales tax ;(
Tactical Solutions 10/22 Compensator, Matte Black
The Tactical Solutions Compensator is
precision machined from solid aircraft aluminum and is type III anodized.
The Tactical Solutions light weight compensator is engineered to reduce
muzzle jump, recoil, and to assist in faster target acquisition.
Modified V-Block Rimfire
Technologies' for Ruger 10/22 custom modified V-Block convenience for the
barrel shim kit. The above is now a custom precision manufactured product
(not Ruger's) of Aircraft aluminum, and two versions: one for Ruger 10/22
and one for Ruger 77/22. Exclusive feature to marry the barrel to the
receiver solid like it was custom threaded along with the receiver,
functionally the same thing - because accuracy demands solidness! New! The
part is redesigned, and still adjustable for conversion, but is now a
precision part, and useful for more precision from a Ruger 10/22, scrap the
threading, this is as good, but less expensive too!
Harris HBLM-S, 9-13 Inch Swivel Bipod
with Notched Legs
Series "M": A
new version of the original Leg Notch Bipod. The legs eject by spring
action. Height settings in 1" increments.
Series "S": Rotates to either side for instant leveling on uneven
ground. Hinged base has tension adjustment and buffer springs to eliminate
tremor or looseness. They are otherwise similar to non-rotating Series.
Available for ALL models except the "H" model.
IMHO this is the best commercial bipod out there, and with the PodLock it is fast and easy to level and lock into position. The notched legs
with spring loaded latches are solid and quick to deploy. I already had this
bipod for my CZ 453.... the addition of a rail mounted swivel adapter lets it
work on the Nordic 10/22. Rather than using a fixed swivel stud, I wanted to be
able to adjust the bipod position along a rail for best balance and looks.
NOTE: DO NOT ORDER FROM UWS - they are a
|E. Arthur Brown
for Harris Bipods Description from E Arthur
The Harris "S" type bipod allows you to
tilt or cant your rifle side to side to level your crosshairs. It's a great
system. However, the friction tensioning knob is hard to adjust with your
fingers. The new PodLock™ Tension Lever replaces the
friction tensioning knob to give you much better control and leverage. The
PodLoc lever can also be released and re-positioned after you've adjusted
it. The PodLock installs easily on all "S" type Harris bipods (sorry it does
NOT fit clone bipods).
|E. Arthur Brown
||$24 ($20 w/ bipod purchase)
Harris Bipod Rail Adaptor The
adapter allows the mounting of sling swivels to rifles equipped with
Picatinny or quad rails. Use PM003 on AR-15 rifles and carbines to attach
adapter and sling swivel. Constructed of hard anodized aircraft grade
Area 51 Tactical
Sightmark Laser Dual Shot Reflex Sight at Binoculars Best Buy.
33mm x 24mm aperture, 1 MOA click
adjustable reticles, 2 MOA diameter laser dot. The
Laser Dual Shot™ Reflex Sight
features an accompanying laser in
perfect parallel precision for the quickest moving targets. This
Reflex Sight can be used from 0 to
infinity, and can be used in conjunction with each other or on their own.
The Laser Dual Shot™ Reflex Sight
features a larger viewing area with 4 reticle types.
JOHN'S COMMENT: This is a Chinese knockoff of the more expensive
holosights, with a red laser added to the right side. It doesn't have the build
quality of a real scope, but it is cheap, apparently well made, and full of
features, including 4 different reticles. The main battery compartment can be
finicky to use - it sometimes tries to unscrew when you turn the brightness knob
CCW. It has a 3 year warranty. Also, it really needs some impact protection - if
I can't locate a wing mount for it, I will try to fabricate something.
Picatinny Scope Riser Rail
The scope riser allows optics to be 3/4" of an inch. The riser ensures
proper scope height without the need for extra high rings. The riser is
quick detachable, held in place by a full length spring locking bar with two
thumb screws. Accepts Weaver and STANAG rings on its Picatinny rail.
Constructed of hard anodized aircraft grade aluminum.
JOHN'S COMMENT: The thumb screws are handy for QD,
but they are overly large and dorky looking.
Area 51 Tactical
Tactics Padded Sling VTAC-MK2
Made for collapsible stock (AR-15 type
rifles). The Viking Tactics Sling is quick, versatile, dynamic and most
importantly simple! The VTAC sling is instantly adjustable to improve your
shooting position, allows shooting from weak side shoulder, secures the
carbine during handgun transitions, and allows hands-free movement in
difficult surroundings. Unlike most slings, the Viking Tactics slings are
fully adjustable while in use. You won’t have to take a break from the
action to adjust your sling. The Viking Tactics sling isn’t just a carry
strap, it’s full range of adjustability will enhance retention when you need
your hands free, it is also one of the only tactical slings that can be used
as an adjustable shooting sling. A tight sling will enhance any shooting
Defense Rail Mount QD Swivel Attachment Point and an
extra DD QD swivel.
One swivel plugs directly
into either of the two side holes of the CCA stock, and the front attachment
point rides on a 3 inch Picatinny rail, at the 9:00 position on the forearm. The
swivels are limited in rotation so the sling won't tangle.
Tactical Discreet Soft Case
Help nosey on-lookers
mind their own business, as you head to the range. This discreet padded
case is capable of securely carrying fully-assembled AR-type rifles up to 18
inches in barrel length (with collapsible stocks). MOLLE webbing provides a
number of hard-points to secure your weapon with the provided Velcro
tie-down straps. A removable padded separator protects your weapon from
rubbing the magazine pockets and other gear stowed on the other side.
Five integral magazine pockets easily hold two USGI 30-round mags each,
giving you a 300-round capacity. A zippered 8 ˝" x 7" security pocket holds
paperwork, manuals, small targets, keys, etc. with added MOLLE webbing to
attach extra mag and utility pouches. A zippered 5 ˝" x 7" widowed pocket is
perfect for range permits, ATF forms, etc.
The exterior has dual-zippered closure, with built-in handles that have a
Velcro roll-over flap, for fatigue-free carrying of heavier loads. The
comfortable 2"-wide adjustable shoulder strap extends from flush, to 48".
JOHN'S COMMENT: this is an exceptionally well
made and satisfying case.
Technical LINKS related to this
Components AR22 Teaser - RimfireCentral.com Lots of technical information
from supplier Gunking, and also from regular folks building an Ultimate
AR-10/22 using the Nordic kit.
nordic kit, please post pics and info of some builds!!! - AR15.com Forums
Some great pics of builds.
"Notch" Quick Fix - RimfireCentral.com An easy and inexpensive solution for
plugging the gap at the trigger guard.
Tactical Solution Barrel Accuracy Test - Mizzou Mule Guns
"The 5 shot group < at 50
yards > yielded .210 CTC using CCI Mini Mags"
Tactical Solutions barrel - extraction problems - RimfireCentral.com Some
cures for sticky extraction.
Tactical Solutions barrel installation thread - RimfireCentral.com
Installation tips - do NOT sand your receiver!
Tac Sol Lightweight
Bull Barrels for the Ruger 10/22 - Gunblast.com review Great early review of
these barrels at a great website.
THE 10/22 resource Home Base for everything 10/22, lots of really great
RimfireCentral.com - Tactical 10/22's Forum dedicated to building custom 10/22s.
Most of these guys have much more money than sense.
10/22 Tech Pages at Gunsmoke.com Some interesting articles and tests.
Assault Weapons: Evil Black Rifles (or perhaps not)
Just what is an EBR anyway? This is an excellent
review of what makes a true military assault rifle and also, in the eye of the
mis-informed public, why semi-auto civilian copies are so "bad".
""Assault rifles" are being demonized by
many politicians, media-types, and other anti-gun folk who actually have no idea
what it is they are demonizing. Most people who hear the truth are quite
surprised to find out just how off-base and factually wrong these nay-sayers
Page updated Sep 22,