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M4-96D

The M4-96D was designed to meet specific military requirements for a compact, high efficiency, quickly detachable suppressor for the 5.56mm Colt M4A1 carbine utilizing M855 ammunition. In addition to the requirements that the suppressor be able to quickly attach securely to the weapon's flash hider without tools, it was necessary that the system remain compatible with all normal military accessories for this weapon. The M4-96D suppressor meets and exceeds these requirements in a physically small package.

The M4-96D, utilizing a totally new concept in baffle design, was computer optimized and is manufactured on the latest state-of-the-art CNC manufacturing centers from space age materials. It provides sound reduction well in excess of OSHA and MIL-STD requirements in a physically compact package. Additionally, there is no degradation of weapon accuracy. Suppressor life is known to exceed 15,000 rounds.

The patented mounting system utilizes Gemtech's special Bi-Lock flash hider, resembling the bird-cage type. The mounting system reduces installation and removal to a simple push and twist motion. By utilizing our high-efficiency Bi-Lock flash hiders on a variety of weapons, the M4-96D suppressor can be quickly, easily, and securely moved from weapon to weapon as the tactical situation requires.

Bi-Lock Flash-Hider/Mounts are available for a variety of weapons including the Colt M16/AR15 (and their clones) as well as other threads on a custom basis. A version of the Bi-Lock without flash hider slots is also available for those who prefer to not have the appearance of a flash hider. At Gemtech, we can install the Bi-Lock to meet BATF specifications for a permanent installation, making the M4 barrel legal for use on an AR15 rifle.

The suppressor and Bi-Lock mount come with detailed instructions for installation and use.

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.