Vltor RE-10/A5SR: A5 Receiver Extension – Grade B + Vltor A5 Standard Weight Buffer – 5.3 Oz.

Vltor RE-10/A5SR: A5 Receiver Extension – Grade B The RE-10/A5SR Receiver Extension is a six position receiver extension designed to work with the VLTOR A5 system. This receiver extension is designed to work with Mil-Spec dimensioned M4/AR-15 type collapsible stocks. It also can be utilized as a replacement receiver extension for the AR-10 rifle. Notes: The A5 Receiver Extension Buffer Tube is just One Piece of the proprietary Vltor A5 Recoil System and MUST ONLY be used with a Vltor A5 Buffer and a Standard Rifle Length Buffer Spring. Attempting to use this A5 Buffer Tube with an AR-15 Carbine Length Buffer Spring and/or Any Other Type of Recoil Buffer (either carbine or rifle size) Will Result in Damage to the host firearm. This product is part of our GRADE-B line of items. This includes factory seconds and cosmetically blemished items. We don’t accept returns on blemished items. Vltor A5 Standard Weight Buffer – 5.3 Oz. The VLTOR A5 buffer system is one of the most tried-and-true buffer systems available in the AR-15 world today. The A5 buffer was specifically designed at the request of the Marine Corps to bring an adjustable stock to their 20” M16 rifles. VLTOR brought them a completely new buffer system that used a rifle-length spring in an adjustable receiver extension tube. This translates to a smoother, slower bolt movement that reduces felt recoil and allows shooters to keep on target. Note: This buffer does not fit standard carbine extensions. This buffer is only compatible with rifles and pistols utilizing the VLTOR A5 Buffer System and receiver extension. Features: VLTOR patented design Body of the buffer is 7075 T6 aluminum Mil-Spec Type III clear hard coat anodized Middle A5 Buffer Weight of 5.33oz A5 buffers can only be used with the A5 receiver extension and come in 5 different weights, depending on the needs of the user. Most 16” AR-15s will use the lower weight H1 and H2 options. Short-barreled rifles or suppressed rifles, which experience a lot of backpressure, use H3 and H4 heavy buffers to counteract the violent action of the AR-15’s bolt. Always check with your rifle’s manufacturer specifications to determine what weight is appropriate in your firearm. In special cases, additional research may be done online to determine compatibility.