5.56 AR 15 Pistol Kit – 10.5″ Nitride Barrel, 1:7 Twist Rate with 12″ Slant M-Lok Handguard

Introducing another great addition to our line of AR pistols build kits. This particular one is chambered in 5.56mm NATO. This kit’s pre-built upper assembly comes with a 10.5″ nitride-coated barrel with a 1:7 twist and a 12″ free floating slanted M-Lok handguard.
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 Pistol Kit Specs
Barreled uppers are assembled in-house before shipment.
Barrel

Chamber: 5.56 NATO
Contour: A2
Length: 10.5”
Twist Rate: 1:7
Gas System: Carbine
Gas Port: 0.750”
Gas Hole Dia.: 0.070”
Muzzle Threads: 1/2×28
Feed Ramps: M4
Material: 4150 CMV
Finish: QPQ Nitride
Process: Button Rifled
Lining: QPQ Nitride
Extension: M4
Muzzle: KAK Flash Can

Handguard

Attachment System: 12″ 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: Phosphate Coating
Interior: Chrome-Lined
Gas Key: Staked, Chromed
Charging Handle: Included

Lower Receiver Parts

Buffer System: Mil-spec, Carbine
Pistol Brace: SB Tactical SBA3
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 Restrictions
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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