AR LOWER PARTS SPRING KIT XTS-LPSK by Xtreme Tactical Sports Save 16% $3.50 $2.95 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart AR LOWER PARTS SPRING KIT XTS-LPSK Bolt Catch Spring Buffer Retainer Spring Detent Takedown Spring x 2 Disconnector Spring Selector Spring Hammer Spring Magazine Catch Spring Trigger Spring