XCR Lower Receiver Parts View cart “XCR Disconnect Spring” has been added to your cart. Showing 33–41 of 41 results Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low XCR-M Bolt Carrier O Ring Type 2 $1.00 XCR-M Bolt Carrier Pin Type 2 $5.00 XCR-M Bolt Carrier Type 2 $100.00 XCR-M Carrier Tail $15.00 XCR-M Extractor .308 $14.00 XCR-M Firing Pin Type 2 $17.00 XCR-M Lower Receiver Semi-Auto Type 2 $400.00 XCR-M Main Pin $5.00 XCR-M Recoil Buffer Type 2 $9.00 ← 1 2 3