Diameter: 1.5 - Overall Length: 8.9 - Length Added: 5.3 - Weight: 15.8 ounces - Materials: 17-4 Stainless Steel & 718 Inconel - Attachment: PSR DUAL-LOK Mounts - SPL: 137.6db (16 7.62mm AR10) - Finish: Cerakote - Full Auto Rated: Yes - Key points : - Patent pending DUAL-LOK wear free mounting system requires no consumable parts - Taper lock interface ensures security and accuracy - ACME thread provides speed of attachment - Locking ring incorporates 3 anti-rotation teeth to eliminate inadvertent loosening - 120 effective positions ensure a rock-solid suppressor mount and provide extremely low POI shift - 17-4 stainless steel & 718 Inconel materials - Tubeless laser welded design - Patent pending ECO-FLOW baffle system for reduced blow back - Patent pending Pressure Reduction Cap with integrated flash hider - PSR DUAL-LOK 2 Port Muzzle Brake 5/8x24 7.62mm included - � wrench flats on muzzle devices - Collar Nitrided black for increased surface hardness corrosion and wear resistance - Heat treated - Warrantied for life with Griffin's Perpetual Lifetime Warranty