Barrel Lug: Short lug
Battle Sight on RSL:Uncertain
Bayonet Type: none
Bayonet Lug: Uncertain
Bolt Carrier: Late Non-Cut
Gas Tube: Early /Uncertain
Gas Block:/Uncertain
Receiver Cover Takedown: Normal
Rear Sight Block: /Uncertain
Serial Number Format: 7 Digits, 1402599J
S/N on Components: Last 5 digits
S/N on Stock: Last X digits, leading zeros, Small/Medium/Large Font/Uncertain
Stock Swivel: Side
Trigger Group Type: /Late Stamped