Midwest Industries Side Folding with Buffer Tube Adaptor | Wing Tactical
1-1/2 x .095 x 3/4-16 Left Hand 4130 Tube Adapter - A.E.D. Motorsport Products
Everbilt 3/4 in. MHT x 1/2 in. FIP Brass Adapter Fitting 801729 - The Home Depot
1.25" Right Hand Tube Adapter Bung - 1.5" ID-BUNG125RH
Stainless Steel Swagelok Tube Fitting, Male Tube Adapter, 1/4 in. Tube OD x 1/2 in. Male NPT | Tube Adapters | Tube Fittings and Adapters | Fittings | All Products | Swagelok