Home / Parts / Two. Swivel stud, adapter, pushbutton base. “A.R. 15 brass catcher” 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 Thompson Center encore 22 250 Remington barrel $299.00 Add to cart Ruger, 1022 take down camo stock $99.00 Add to cart Colt commander complete upper with muzzle brake attachment 45acp $499.00 Add to cart uzi smg barrel $150.00 Add to cart