Lightweight, subsonic-friendly, and suppressor-ready.
This 8.5" 300 Blackout AR pistol kit provides the perfect configuration for slappin' a can on the muzzle and running some heavy subsonics for suppressed fire. Thanks to a fast 1:7 twist rate and free-floating, skeletonized handguard, this 300 BLK kit is lightweight, accurate, and able to host any suppressor on its 5/8x24 TPI muzzle.
This includes all components required to assemble a ready-to-fire pistol, except for a stripped lower receiver. This kit's compatible with all "retail" stripped lowers or fabricated 5.56/.223-chambered AR-15 80% lowers.
Note: Due to ATF rule 2021R-08F, any pistol with a stabilizing brace is considered a short-barreled rifle (SBR), and is therefore considered a National Firearms Act item requiring a federal tax stamp.
What’s Included
This kit is not a firearm. It includes an assembled upper receiver, bolt carrier group, lower parts kit, and buffer assembly with pistol brace.
New builder? Here's how to build an AR-15.
AR-15 (300 BLK) Pistol Kit Specs
Barreled uppers are assembled in-house before shipment.
Barrel
- Chamber: .300 AAC Blackout
- Contour: Straight
- Length: 8.5”
- Twist Rate: 1:7
- Gas System: Pistol
- Muzzle Threads: 5/8x24
- Feed Ramps: M4
- Material: 4150 CMV
- Finish: Nitride
- Process: Button Rifled
- Lining: None
- Extension: .30-Cal
- Muzzle: Pinhole Compensator
Handguard
- Attachment System: 7" Lightweight M-Lok
- Finish: Type III Hardcoat Anodized (Mil-Spec)
- Top Rail: M1913 Picatinny
- Material: Billet 6061-T6 Aluminum
- Attachment: Barrel Nut
Upper Receiver
- Profile: M4 Flattop
- Material: Forged 7075-T6 Aluminum
- Finish: Type III Hardcoat Anodized (Mil-Spec)
Bolt Carrier Group
- Profile: M16/Full-Auto
- Steel: Carpenter No. 158 (Mil-Spec)
- Exterior: Black Nitride
- Interior: Black Nitride
- Gas Key: Staked
- Charging Handle: Included
Lower Receiver Parts
- Buffer System: Mil-spec Tube, Carbine (3.0 Oz) Buffer
- Parts Kit: Mil-spec, single-stage
Lower Receiver not included.
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.
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