Description: Drop in replacement for A1 or A2 standard AR15/M16 Stocks. Just slip off your old stock and slide this one on. Uses the existing buffer and tube. It provides for adjustable length of pull and comb height adjustments via click wheels. Charging handle can be used with Comb raised. Removable base cover with built in rail for mono pod. Sling loops can be mounted either side of stock. Weight: 28 oz LOP Adjust: 1 inch Height Adjust: 0.6 inch *Lower pictured may not be accurate.