BG Complete 9" .22LR Upper Receiver - Black | A2 | 7" M-LOK | With BCG & CH

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Product Code: BG922LR7A2-BLK
MSRP: $463.95
Sale Price: Sale Price: $290.95
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Builder's Grade Complete 9" .22LR LUpper Receiver | A2 | 7" M-LOK | With Bolt Carrier Group and Charging Handle

This Complete 9 inch M-LOK upper receiver comes with a 7 inch free float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 barrel and the bolt is made of all stainless steel construction and we use an anti-jamb dedicated 22 charging handle.

Caliber 22LR
Length 9"
Material 4150 Chrome Moly Vanadium
Profile Medium Taper
Finish SBN
Dimpled? No
Twist Rate 1:16
Muzzle Thread 1/2x28 TPI
Weight 16.23 oz

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.


  • 7" free float handguar
  • MIL-STD 1913 Picatinny rail on top
  • 2 M-Lok slots on 3 sides
  • Precision Machined 6000 Series aluminum, for high strength and weight savings
  • Hard Coat Anodized per Mil-A-8625F, Type III, Class 2
  • Clamp on system for easy assembly
  • Steel Barrel nut to resist movement under heat
  • 8.9 oz with barrel nut and hardware
  • 1.35" Inside Diameter
  • 1.63" Wide

Charging Handle:

  • Durable polymer construction with a filled-in, reinforced channel
  • .22 ARC Mil-Spec style
  • Anti-Jam Charging Handle Assembly

Please Note:

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.