The Mongoose offers customers a lightweight low-recoil pistol-caliber carbine for competition home defense and plinking. – Barrel Length: 5.8 in – Overall Length: 13.67 in – Weight: 3.6 lb – Action Short recoil operating system – Frame PCC – Barrel Length 5.8 in – Firearm 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 protecter – Receivers NEMO extruded aluminum upper receiver and billet lower receiver – Handguard / Forearm Integral 10.25 top picatinny rail two M-LOK slots at 3 and 9 o’clock one M-LOK slot at 6 o’clock – Sling Attachment Rear back plate with picatinny rail for sling stock and accessory mounting – Bolt Lightweight short-recoil bolt – Trigger ALG ACT Trigger – Charging Handle Non-reciprocating forward charging handle with either left/right hand side compatibility – Muzzle Ships with two end caps: Flat End Cap for suppressed use Compensator End Cap for non-suppressed use – Safety Ambidextrous safety selector – Buffer Assembly Bolt-captured recoil spring and guide rod with additional secondary buffer spring/plunger – Brace SB Tactical FS1913 brace – Grip MAGPUL MOE SL grip – Magazine MAGPUL 35-round PMAG 35 EV9 – Additional 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 9×19 mm do not use with +P+ ammunition – Suppressor Recommendation We recommend suppressors with a booster no longer than 5 ¼ and not heavier than 8.5oz – Warranty Limited lifetime warranty – Also ships with Custom NEMO soft range bag Owners manual w/ product registration