The lightweight KGM R30 .30 caliber can gets its performance from the Adjustable Port End Cap (APEC) that allows tuning of external gas flow. This efficient management of gas flow minimizes effects to bullet flight for increased precision. KGM's gas flow process reduces flash, recoil, and noise. The result is a quiet shooting experience with better accuracy. KGM R30 uses titanium for construction and laser welds for durability, . For maximum versatility in mounting options, the R30 has rear 1.375x24 TPI (HUB) threads, and is equipped with a titanium 5/8x24 direct thread mount. It weighs just 12 ounces and measures just 7.3 inches in length. It comes in a cool Sniper Grey Cerakote finish.