The Mongoose offers customers a lightweight, low-recoil pistol-caliber carbine for competition, home defense and plinking.Barrel Length: 5.8 inOverall Length: 13.67 inWeight: 3.6 lbAction Short recoil operating systemFrame PCCBarrel Length 5.8 inFirearm Overall Length 13.67 in, 23.38 in (with extended brace)Firearm Weight 3.6 lb, 4.26 lb (with brace)Barrel NEMO 5.8" steel barrel; 1:10 twist; threaded 1/2 x 28; QPQ nitrided ships with barrel thread protecterReceivers NEMO extruded aluminum upper receiver and billet lower receiverHandguard / Forearm Integral 10.25" top picatinny rail, two M-LOK slots at 3 and 9 o'clock, one M-LOK slot at 6 o'clockSling Attachment Rear back plate with picatinny rail for sling, stock, and accessory mountingBolt Lightweight short-recoil boltTrigger ALG ACT TriggerCharging Handle Non-reciprocating forward charging handle with either left/right hand side compatibilityMuzzle Ships with two end caps: Flat End Cap for suppressed use, Compensator End Cap for non-suppressed useSafety Ambidextrous safety selectorBuffer Assembly Bolt-captured recoil spring and guide rod with additional secondary buffer spring/plungerBrace SB Tactical FS1913 braceGrip MAGPUL MOE SL gripMagazine MAGPUL 35-round PMAG 35 EV9Additional Features Ambi bolt catch/release with last round bolt hold open. Ambi magazine release. Easy AR-style two pin disassembly. Easy takedown lever to field strip bolt and barrel. Bolt actuated ejector.Compatible with (ammo) 9MM LUGER, 919 mm do not use with +P+ ammunitionSuppressor Recommendation We recommend suppressors with a booster, no longer than 5 " and not heavier than 8.5ozAlso ships with Custom NEMO soft range bag, Owners manual w/ product registration