Products / .308 XH Carbine

XH Carbine Buffer w/.308R Buffer Spring - 8.5 ounces - $152

XH Carbine Buffer + .308 Rifle Spring
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This Xtra-Heavy buffer is the heaviest standard carbine length buffer on the market. At 8.5 oz it weighs nearly three times as much as OEM AR15 carbine buffers.

Machined from solid 303 Stainless Steel with Tungsten anti-bounce internal weights. Includes a Stainless Steel roll pin for a lifetime of trouble-free performance.

This is the BEST buffer/spring combo if you have an extended (7⅝" deep) receiver extension on your large-frame AR, like a VLTOR A5 tube/clone or a Magpul UBR Gen2 stock. Most better .308 rifles come from the factory in this configuration - LMT, S&W, LaRue, POF, etc. Absolutely the most reliable setup for any AR-10 with a carbine/collapsable stock.

If you have any doubt, please measure your current buffer and check the inside depth of your buffer tube.
These products are a drop-in upgrade if you have 3¼" long buffer and your tube is 7⅝" deep.

Please note that all .308 rifle buffer springs are not created equal.  We strongly encourage using the ArmaLite #EA1095 buffer spring listed here.  Using other buffer springs is likely to cause reliability issues. We do not recommend using flat-wire springs under any circumstances.

Email us before ordering if you have any questions.

DO NOT USE an XH Carbine Buffer in any large-frame gun with a standard AR-15 carbine buffer tube! Damage/injury/mayhem will result.

 

A5 Buffer Tube

FCD REF5 - A5 Buffer Tube Kit - 7⅝" - $70

Quantity:      

Forward Controls Design RE5F Receiver Extension

  • Extended Carbine Buffer Tube
  • 7⅝" Inside Length
  • MILSPEC Diameter, 9-Position with 2 Extra Drain Holes
  • Aircraft Grade 7075-T6 Aluminum
  • Interior Coated with Dry Film Lubricant
  • Made in USA
  • Includes Nut and Lock Plate
  • Use only with A5 Buffers for 5.56mm and other Small-Frame ARs
  • Use with XH Carbine Buffer for .308/6.5 CM and other Large-Frame ARs


Note: We cannot guarantee proper function with subsonic ammo. There are significant differences in specifications among the various brands of ammo and firearms manufacturers. Some guns will run great with almost any ammo, other guns may not function reliably with any subsonics. This is all beyond our control.

Specifications are subject to change without notice.

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