A true Small-Frame Autoloading Rifle, the SFAR is nearly identical in size to a traditional modern sporting rifle. Features Picatinny rail; venting holes in the upper receiver, barrel extension and bolt carrier ensure that excess gas is directed safely away from the user; 15" M-LOK aluminum handguard; QD sling swivels; Magpul PRS Lite stock and MOE K2 grip; receiver end plate includes an additional socket for a QD sling swivel; compatible with most mil-spec MSR trigger groups, receiver end plates, charging handles, pistol grips, and adjustable stocks; heavy profile barrel; Ruger 2-port Boomer muzzle brake and a Ruger Elite 452 trigger. Includes a 3/16" ball-end wrench, a 20rd Magpul PMAG magazine and is compatible with SR25/AR-10-pattern .308 Win/7.62 NATO magazines.