Home / Parts / Two. Swivel stud, adapter, pushbutton base. “Colt commander complete upper with muzzle brake attachment 45acp” has been added to your cart. View cart Two. Swivel stud, adapter, pushbutton base.$25.00 4 in stock Two. Swivel stud, adapter, pushbutton base. quantity Add to cart SKU: 157bu Category: Parts Product ID: 11624 Description Description Bye Grove, Tech factory SKU number Gtsw-235 if interested call 9076321112 Related products uzi smg barrel $150.00 Add to cart A.R. 15 brass catcher $55.00 Add to cart Ruger, 1022 take down camo stock $99.00 Add to cart Ruger, mini 14/30 recoil buffer $20.00 Add to cart