.300 Blackout AR 15 Pistol Kit – 7.5″ Parkerized Heavy Barrel, 1:8 Twist Rate with 6.5″ MLOK Handguard

Ready for a suppressor with maximum subsonic accuracy.

Nothing feels better than putting together a new AR, sending some rounds downrange, and ringing steel – especially with a suppressor muffling subsonics. That’s exactly what this 300 BLK AR pistol kit is intended to do: Its 7.5″ heavy barrel, featuring a 1:8 twist rate and pistol gas system, is ready to reliably and accurately cycle both supersonics and subsonics, with or without a suppressor, providing tight groupings that are whisper-quiet.

What’s Included

This is not a firearm. It includes an assembled upper receiver, bolt carrier group, charging handle, lower parts kit, and buffer system.

300 BLK Pistol Upper Assembly Specs

Barreled uppers are assembled in-house before shipment.

Barrel

• Chamber: .300 AAC Blackout
• Contour: Heavy
• Length: 7.5″
• Twist Rate: 1:8
• Gas System: Pistol
• Gas Block: 0.750″
• Muzzle Threads: 5/8×24
• Feed Ramps: .30 Cal
• Material: 4150 CMV
• Finish: Parkerized
• Process: Button Rifled
• Lining: None
• Extension: M4
• Muzzle: Fluted Flash Hider

Handguard

• Attachment System: 6.5″ 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: Billet 6061-T6 Aluminum
• Finish: Type III Hardcoat Anodized (Mil-Spec)

Bolt Carrier Group

• Profile: M16/Full-Auto
• Steel: AISI E9310
• Exterior: Black Nitride
• Interior: Black Nitride
• Gas Key: Staked
• Charging Handle: Included, Right Side Charging

Lower Receiver Parts

• Buffer System: AR-15
• Pistol Brace: SBA3 5-Position
• Parts Kit: Mil-Spec LPK

Lower receiver assembly sold separately.