Close Quarters Airsoft Assault Rifle - SR4 - Black Ops USA

When you pick up the SR4 you can feel the solid build quality. Upper and lower receivers, buffer tube, outer barrel, RIS rails, gas block, and flip up sights are all metal, and built to last. Even the polymer grip and Crane stock are made from solid, high impact ABS, just like the real thing.   You’ll find the same build quality and attention to detail inside the gun. This Black Ops M4 comes stock with a full metal Gen. 3 gearbox from SRC with with 8 mm metal bearing bushings, metal spring guide, upgraded metal piston head, cylinder, and cylinder head, and pre-shimmed all steel gears. The hop up is metal with a newly designed wishbone style hop up arm that eliminates creep while improving consistency and range, and a new high torque, long axle motor from SRC is

M4 Diamond Back Full Metal Airsoft Assault Rifle - Black Ops USA

SR4 Mamba M Gen2 Airsoft Gun - Just BB Guns

What is the most OP thing in a video game? - Quora

SRC - SR4 ST Falcon-W AR-9 AEG, Patrol Base UK

CQB

Quick overview of the Black Ops M4 Cobra Assault Rifle (Airsoft)

M4 Diamond Back Full Metal Airsoft Assault Rifle - Black Ops USA, air soft

SR4 CQB Micro AEG Full Metal Airsoft Gun - Just Airsoft Guns

Bulldog SR4 ST Alpha Airsoft Gun Black - Just BB Guns Ireland