Rifle Build Kit - .22 LR | Builder's Grade Complete 16" Upper Receiver with A2 | M4 6-Position Stock and Buffer Tube Kit | Bare Necessities Lower Parts Kit
Builder's Grade Complete 16" .22LR Upper Receiver | 15" Slant Cut M-LOK | BCG & CH:
This lightweight .22 Rimfire Complete Upper Receiver comes with our precision 16 inch pencil barrel and a 15 inch Free-Float MLOK rail, with the flash hider extending past the handguard. The bolt is made of all stainless steel construction and we use an anti-jamb dedicated 22 charging handle.
Our .22 LR upper receivers are fully compatible with CMMG or similar 22 components. Our barrels and bolts are fully interchangeable and follow the same pattern as CMMG.
Compatible with RTB/CMMG .22 magazines, which you can find here
|
Barrel
|
Specifications
|
|---|---|
| Caliber | 22LR |
| Length | 16" |
| Material | 4150 Chrome Moly Vanadium |
| Profile | Lightweight Pencil |
| Finish | SBN |
| Dimpled? | No |
| Twist Rate | 1:16 |
| Muzzle Thread | 1/2x28 TPI |
| Weight | 23.2oz |
Bolt Carrier Group:
- Stainless Steel Construction
- Designed to work with all CMMG and RTB .22LR barrels
- long lasting and reliable
Upper Receiver:
- Machined from a Mil-Spec 7075 T6 forging Hard Coat Anodized per Mil-A-8625F, Type III
- M4 Feed ramps
- Made in the U.S.A.
Handguard:
- 15" free float handguard
- MIL-STD 1913 Picatinny rail on top
- 8 M-Lok slots on 3 sides
- Precision Machined 6000 Series aluminum, for high strength and weight savings
- Clamp on system for easy assembly
- Steel Barrel nut to resist movement under heat
- Made in USA
Charging Handle:
- Durable polymer construction with a filled-in, reinforced channel
- .22 ARC Mil-Spec style
- Anti-Jam Charging Handle Assembly
Tactical Sport 6-Position M4 Stock Kit:
This polymer stock is made from impact-resistant, high-strength material.
- Mil-spec Diameter Extension Tube Made from Aircraft Aluminum with Rolled Threads
- Built for Heavy-duty Operations with Tightest Tolerance Control
- Stock Assembly Complete with Action Spring, Buffer Assembly, Tear-drop Ring, and Castle Nut
Bare Necessities Complete AR15 LPK:
This BN Lower Parts Kit is what you need to build a custom AR15 from the ground up. Mil-spec dimensions and coating ensure the highest quality and correct component interface.
- Takedown/pivot Spring
- Takedown/pivot detent
- Trigger/hammer pin
- Takedown pin
- Pivot pin
- Bolt Catch
- Bolt Catch Spring
- Bolt Catch buffer
- Bolt catch roll pin
- Safety Selector
- Safety Selector spring
- Safety Selector detent
- Buffer retainer
- Buffer retainer spring
- Trigger guard
- Trigger guard roll pin
- A2 pistol grip
- Pistol grip screw
- Pistol grip lock washer
- Trigger spring
- Hammer spring
- Disconnector spring
- Magazine catch body
- Magazine catch spring
- Magazine catch button
- Hammer
- Trigger
- Disconnector
Uppers may present light fouling from our quality control process and/or test firing
All semi-auto rimfire firearms operate best with quality copper plated and full powered or high velocity 22lr ammunition.
Although .22lr AR builds do not utilize the functionality of a buffer or buffer spring, we still recommend using both to provide a stopping point/wall that prevents the 22 bolt carrier from moving rearward. Using a buffer and buffer spring will prevent light primer strikes. This is true for all Ciener/Atchisson 22 pattern platforms.
