XCR-L Parts View cart “XCR Charing Slide Spring” has been added to your cart. Showing 81–83 of 83 results Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low XCR-L Upper Receiver M-LOK Micro $500.00 XCR-L Upper Receiver M-LOK Mini $500.00 XCR-L Upper Receiver M-LOK Standard $500.00 ← 1 2 3 4 5 6