Threaded for 5/8x24, precision machined from solid 4140 bar stock, heat treated, and black nitrided, it is probably the finest A2 style comp/flash suppressor ever produced. Its 3 and 9 o'clock ports are 25% smaller (shorter and narrower) than the other three upward facing ports so more gas is vented through the upward facing ports, it is a superior compensator to the A2, its flash suppression is equal to that of an A2. 6315 is compatible with M16 BFA and most A2 mounted sound suppressors. Note that since 6315 does have flash suppression capability equal to that of an A2, it is to be treated as a flash suppressor for states that feel threatened by them, such as CA, MA and NY. Threaded for 5/8x24. 6310 is a light and short blended performance muzzle device. It features shorter and smaller 3 and 9 o'clock ports to direct gas upward, this provides 15 to 20% better muzzle rise compensation than the A2, and what is impressive is that it does so without sacrificing its flash suppression capabilities or creating more noise and concussion. The number 63 in its name pays homage to the Stoner 63 light machine gun, the shape of its ports draws heavily from the Stoner 63 LMG's flash suppressor design.

• A crush washer is included
• Proudly designed and made in USA.
• Compact A2 sized
• 5/8x24 threaded 30 cal flash suppressor/compensator
• Improved muzzle rise compensator capabilities