These parts are all new and were pulled from a Colt LE6920-OEM1 carbine. Colt carbine buffer spring (p/n SP62373) and H buffer (p/n SP64688 ). Price is $36 for both, shipped. SOLD Colt castle nut (p/n SP64069) and end plate (p/n SP62358 ). Minor damage from unstaking. 100% functional. Price is $10 for both, shipped. GONE Colt LE6920 4-position receiver extension (p/n SP64072). Very minor thread scraping from unstaking the castle nut. 100% functional. Price is $35 shipped. SOLD Combined shipping available. No trades. Payment only by PayPal gift/friend (or add 4%) with no mention of the transaction details and do not include your address.