Sweetwater M36A4 Modular Weapons System

As the M16 series rifles age, the world's most powerful military force must change and evolve alongside the leaps in firearms technology. The M36A4 line, a production-ready series of dynamic, modular rifles, bridges the gap between the proven technology of the 20th century and the promising future of the 21st.

 

NOTE: USE THE "BUTTONS" NEXT TO EACH VARIANT TO SEE EACH INDIVIDUAL GUN.

 

I will not be uploading them all to the pool.

 

With its patented double-receiver design, the M36A4 is largely built of a strong polymer composite- and is geared toward maximum versatility. The milled aluminum inner receivers and barrel assemblies can be quickly unbolted from the main receiver and swapped, converting the weapon to serve almost any purpose- from close quarters combat to long range sniper engagements.

 

This is the fourth incarnation of the M36 platform. New to the A4, the magazine shield has been redesigned and can be easily unbolted and removed for use of different types of magazines. The rails on the left and right of the receiver have also been replaced with extended, bolt-on versions which can be independently unbolted from either the entire weapon or simply from the various heat shield models, as shown in the top image (which shows the outer receiver with the rails, independent from an inner receiver, barrel and heatshield.)

 

The M36A4 is completely unique in its ease of conversion- within ten minutes, the frame can be gutted and a new receiver and barrel fitted, making this the one and only assault rifle the U.S. will need for almost any imaginable purpose. Developed and built alongside Heckler und Koch of Germany, the M36 series is a fairly easy step from the M4s and M16s of yester-year. With this ease of transition in mind, the weapon uses the same barrel lengths and threading as the M4/M16 series, making ballistics nearly identical to current standards. The five standard variants are shown: The 14.5" M4-barreled Compact, 20" M16-barreled Standard, and the 22" Designated Marksman variants are chambered in 5.56 x 45mm NATO; while the 20" Grenadier and 23" Sniper variants are chambered in the powerful 7.62 x 51mm NATO. The two versions of inner receiver are designed to accept the 30-round STANAG and 20-round SR-25 magazines, respectively, so existing magazines can be recycled from the older rifles.

 

Barrel threads and standardized birdcage flash hiders mean that any M16-compatible suppressors or flash hiders can be used. Picatinny rails on the top and sides of the outer receiver allow for easy mounting of optics and other accessories, and underbarrel M203 grenade launchers (already plentiful in America's small-arms arsenal) can be fitted to the aluminum subframe using a modified mounting bracket.

 

The safety is a simple push-button safe/fire design paired with an Spz-kr type two-stage trigger, similar to the trigger group on the Austrian Steyr AUG (half squeeze for semi-auto, full pull for full automatic.) A proprietary short-stroke piston gas system derived from the HK416 replaces the direct impingement gas system used by the standard M16/M4 design, keeping combustion gas and heat away from the internals. This drastically increases the reliability of the weapon and also allows for better tolerances internally (translating into increased accuracy in the field.)

 

Using existing M4 and M16 optics, foregrips, suppressors, grenade launchers and magazines will save the U.S. hundreds of millions of dollars during the transition.

 

Simple, reliable, accurate and affordable, the M36 is the perfect American assault rifle.

Done