The Sub-Sonic Boom (Suppressor Ready) w/Gauntlet Arms Brace 12.5-inch LR-308 8.6 BLK Pistol Full Build Kit from DTT Stiffler MFG features a robust 12.5-inch SOCOM profile barrel made from parkerized steel with a 1:3 twist rate and a pistol-length gas system. The kit includes an Aero Precision 7075-T6 aluminum upper receiver, a 9310 alloy steel bolt carrier group (BCG) with nitride finish, and a durable M-Lok handguard crafted from 6061-T6 aluminum. The polymer Gauntlet Arms Stabilizing Brace enhances stability while maintaining a lightweight profile.
Platform: AR-10
Caliber: 8.6 Blackout
Barrel Length: 12.5 inches
Barrel Material: Parkerized Steel
Barrel Gas System Length: Pistol Length
Barrel Profile: SOCOM
Barrel Twist Rate: 1:3 Twist
Barrel Finish: Parkerized
Gas Block Size: .875
Gas Block Name: Steel Micro Gas Block .875
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: M-Lok
Upper Receiver: Aero Precision 308 M5 Upper Receiver
Upper Receiver Material: 7075-T6 Aluminum
Receiver Profile: High
Forward Assist: Yes
Dust Door: Yes
Charging Handle: Mil-Spec AR-15 M4 Charging Handle
BCG Bolt Head Material: 9310 Alloy Steel
BCG Bolt Head Finish: Nitride
BCG Body Material: 8620 Alloy Steel
Brace: Gauntlet Arms Polymer Stabilizing Brace
Brace Material: High-Strength Polymer
Brace Color: Black
Buffer Tube Kit: Omega Mfg. LR-308 Collapsible Stock Buffer
Buffer Weight: AR-10/LR-308 Buffer - 3.7 oz
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