The Midwest Industries Alpha M4 Beam Folding Stock Adapter is a heavy-duty side-folding mechanism built for AR platform rifles that demand compact handling without sacrificing stability. If you're running a modern tactical rifle, SBR, or pistol-caliber carbine and need the ability to collapse your gun for transport, storage, or tight-quarters work, this American-made adapter bridges your 1913 Picatinny rail to mil-spec diameter stocks with the kind of bombproof engineering you expect from a shop-floor-proven manufacturer.
Built from 4140 steel with a full-length locking lug, the Alpha design locks up solid in both the extended and folded positions. The curved beam top resists wobble on skeletonized setups, and the steel clamp offers large contact surface for rock-solid clamping. You get configurable right or left folding, dual QD sling attachment points, and a modular design that plays nice with different stock options. The mag phosphate finish is tough and workmanlike—no frills, just corrosion resistance that won't let you down in the field.
When folded, the adapter adds just 0.75 inches to your rifle's footprint—ideal for car storage, backpack carry, or vehicle-mounted setups. Extended, it adds 7.0 inches overall length and weighs 11.6 ounces, a reasonable price for the capability. Made in the USA and backed by a lifetime warranty, it's the kind of accessory that earns its spot on a serious rifle. Note that you are responsible for ensuring this item complies with all federal, state, and local laws, including any ATF requirements that may apply.
Midwest Industries
Midwest Industries
Midwest Industries
Midwest Industries
