Army Armaments - 5.1 Hi-Capa Costa Comp R501 a5 The gearbox is constructed entirely

The gearbox is constructed entirely out of metal

Modified CTR Enhanced Stock

Comparable to an M4 in barrel length but a fraction of the overall size

hopups and buckings for simple access to upgrade the M132

Length Outer 14

Army Armaments - 5.1 Hi-Capa Costa Comp R501 a5 The gearbox is constructed entirelyArmy Custom 5. 1 Hi Capa with Costa Compensator (Full Metal Black R501) Get your Chris Costa on with this Army 5. 1 Hi Capa with Costa Compensator Main features: Full Metal Construction 4 inch island type barrel with compensator Realistic Blowback System Double Stack Magazine Sealed New Generation Magazine Valves Fiber Optic Front Sight Reinforced Cold Resistant Polymer Nozzle Compatible with CO2 Green gas powered magazines