KeyMod slots are located in the 3, 6 and 9 o’clock positions while a top Picatinny rail runs the length of the handguard. (The barrel nut is another 3 ounces, but this is located so close to the receiver that your rifle’s balance won’t be affected.) It’s built from 6061-T6 aircraft-grade aluminum and weighs in at a scant 13 ounces. As its name suggests, the railed handguard is in KeyMod format, and it’s 15 inches in length. Today, any company worth their salt builds KeyMod or M-LOK handguards from aircraft-grade aluminum, providing modularity without being too bulky.ĬMMG makes a handguard that I really like: the RKM15. Thankfully, the days of quad-rail handguards are a distant memory with modern manufacturers. Add a quad-rail handguard, a bipod and other accessories and you’ll quickly find yourself with a 13-pound carbine. 308 AR is already a fairly heavy gun, especially when compared to an AR-15. CMMG RKM15 Handguard: Heavy firearms are a burden to drag around to a deer stand, shooting bench or 3-Gun match.

Saint keymod accessories issue