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M4-02 (Piranha)

Designed for the entry team, the M4-02 (Piranha) is a more compact and more efficient replacement for our venerable Predator. As with its predecessor, the M4-02 (Piranha) is built from high nickel steel alloys finished with a matte black oxide finish. Designed for semi-automatic and limited fully automatic fire, the suppressor mounts on the muzzle threads in place of the flash hider. This is the ideal companion for the Colt M16 and Commando. Muzzle velocity and accuracy are not adversely affected by the unit.

The M4-02 (Piranha) is available for the standard Colt muzzle thread (1/2x28)

Full Automatic Fire Issues:
Suppressors shown with or designed for machine guns are rated for fully automatic fire. In the case of suppressors designed for .223 (5.56mm), there are some limitations in the duration of fully automatic fire due to shortcomings in the ammunition, not the suppressor. 5.56mm is a unique cartridge. The projectile is physically small and lightweight. The relatively high muzzle velocity causes excessive barrel heating from friction, with outside barrel temperatures exceeding 700° F in a 100 round burst. Bore temperature is considerably higher. The projectile contains a small quantity of lead, which after a 90 round burst starts to soften and/or melt. The softening of the lead core results in geometric instability of the projectile, causing excessive yawing, tumbling, and suppressor baffle contact. These effects are not normally seen anywhere near this early in larger caliber projectiles, such as 7.62 NATO. Although the suppressor is capable of withstanding long bursts using ammunition not containing any lead, any lead containing 5.56mm ammunition will damage the suppressor. Because of the deleterious heating effect, most weapon manufacturers place serious limitations on sustained fully automatic fire and state that the barrel is ruined after a 200 round burst.