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Enhanced Compact Buffer Tube, Spring & Buffer Assemblies for Viper PDW Stocks & Braces - Gen 2
Enhanced Compact Buffer Tube, Spring & Buffer Assemblies for Viper PDW Stocks & Braces - Gen 2

Enhanced Compact Buffer Tube, Spring & Buffer Assemblies for Viper PDW Stocks & Braces - Gen 2

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Your Price: $79.99
Part Number: STVPRBFR
Availability: In Stock

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Gen 2 Enhanced Compact Buffer Tube, Spring & Buffer for Viper PDW Stocks & Braces

Black Rifle Arms patented Enhanced Compact Buffer Tube, Spring & Buffer Tube Assembly allows for Strike Industry Viper PDW Stocks and Braces to be finely tuned with different buffer weights from Carbine, H2 and Pistol.

Our pistol buffer enables the Strike Industry Viper PDW stock and braces to run pistol calibers. The receiver extension (buffer tube) is 5 5/8" in overall length. This kit is a drop in replacement and you can utilize the Strikes cheek piece, as well. The H2 buffer ensures reliable operation with select-fire weapons.

Kit Includes 1-Qty each:
  • Spring
  • Buffer Tube - Gen 2
    • Flutes on receiver extension allows Strikes Cheek Rest to be utilized
    • Hybrid tube has a relief cut to enable the use of an End Plate and Castle nut should it become necessary to convert to a pistol tube. (See our Compact Pistol Tube Kit)
    • Machined from Aircraft quality aluminum billet
    • Mil-spec Hard coat anodized finish
  • Buffer (buffer weight options)
    • Carbine Buffer weight 3.15 oz
    • H2 Buffer weight 4.60 oz.
      • H2 Buffer is recommended for full-auto use
    • Pistol Buffer weight 7.45 oz
Pistol buffers are not compatible with Radial Delay Blowback Systems. In case of the Radial Delay Blowback use PDW Carbine or PDW H2 Buffers.


An example of a Strike Industries Viper PDW Stock being converted over to our compact buffer, spring with buffer tube assembly to allow for adjustability of buffer weights.
Rifle not included

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