H&K HK MR556/416 Mil-Spec Enhanced Buffer Tube

HK 416, MR556 OTB (over the beach) Buffer Tube, Receiver Extension

Genuine HK German manufactured 416, MR556 new style latest generation marine environment "over the beach" buffer tube. Each mil-spec buffer tube has built in drainage holes in the rear of the tube and also on the bottom for maximize efficiency. Each buffer tube has ball bearing rollers to tighten the stock when locked in position. This helps smooth the sliding action when changing between the 6 positions that also eliminates any back and forth sway from the stock. Technical Note: The OD of this tube is 29.20mm or 1.150"Fits the following:

• All HK 416/MR556 E1 or E2 stocks
• Any Milspec AR-15, M16 stock
• The 2 locking ball detents are adjustable for the desired fit
• Perfect for those that have to have the "finest" buffer tube available