Midwest Industries Alpha Series M4 Beam Features The Midwest Industries Alpha Series M4 Beam connects to a 1913 Picatinny interface giving shooters a straightforward easily installed way to add nearly any mil-spec stock to a compact beam-equipped AR-platform rifle. This fixed non-folding design provides a stable consistent connection point without the added complexity or potential wobble of a folding hinge. Because it accepts standard mil-spec buffer tube stocks shooters can swap in whatever stock best suits their intended use whether that is a fixed rifle-length stock for range shooting or an adjustable carbine stock for a more compact overall length. This flexibility lets one beam system serve multiple configurations depending on the shooter s needs. Machined and anodized in black the adapter is built from durable aluminum construction that holds up to the recoil and handling of regular range use. At just 5.5 oz it adds minimal weight to the rifle while extending the overall length by 6.5 inches once a stock is installed a trade-off most shooters will find well worth the added stock options it unlocks. The fixed Picatinny mounting design keeps installation simple requiring no specialized tools beyond what is typically needed to attach a standard stock. For AR owners who want the option to run a beam stock system with a conventional mil-spec stock this adapter delivers a clean reliable connection. Midwest Industries Alpha Series M4 Beam Specifications Brand: Midwest Industries Model: Alpha Series M4 Beam Type: Stock Adapter Fit: 1913 Picatinny Style: Fixed Finish: Anodized Color: Black Weight: 5.5 oz Available At: GrabAGun