HM Defense's Raider M5 pistol features a HM MonoBloc barrel with an integral machined gas block. The 4150 chromoly barrel also features a mid-length gas system and is match grade, tripled honed, and button rifled. The Raider M5 also utilizes a 10.37" free-float handguard with Picatinny rail and is compatible with Magpul M-Lok mounting system. To finish off this tactical firearm is a adjustable Shockwave blade pistol stabilizer.