Armaspec Sound Mitigation Buffer H2 - Gen3

Manufactured by ARMASPEC
SKU: ARM258-H2
MPN: ARM258-H2
Manufactured by ARMASPEC
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Standard orders will ship out in 1 business day (M-F) if ordered by 3:30 pm CST. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination. NFA items will take longer to ship and are dependent upon ATF processing times.

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Armaspec has been a firearm enthusiast's go-to source for AR15 and AR10 barrels, bolt carrier groups, Glock and Kalishnikov rifle parts, and even 1911 pistol enhancements for the last nine years. This Sound Mitigation Buffer™ H2 series for AR platform rifles from Armaspec is an excellent example of the company's dedication to producing products that offer a tactical advantage at a fair price.

  • Single Stage Drop-In Replacement
  • Adjustable Spring Weight
  • Polymer Base Guide Rod
  • Lifetime Warranty
  • H2 Series Weight 4.7 ounces

After firing a few thousand rounds of your AR15, carbine, or AR10 rifle, the buffer and spring tend to get a little stressed and require heavier maintenance cycles to keep the gun in top firing condition. The primary cause of this is that the buffer spring may often rub against the inside wall of the buffer tube. The continuous rubbing will create a distinctive sound while shooting, but it can cause your AR or carbine platform rifle to operate less efficiently. Armaspec features a single-stage captured drop-in replacement for your standard buffer and spring to solve this issue while at the same time reducing felt recoil.

With a SMB™ H2 series from Armaspec, you'll get smooth and quiet operation, and you can even reduce the spring weight by trimming the mainspring. Each coil of the spring represents a quarter of a pound which means you can actually reduce the tension of the buffer spring by a maximum of three pounds or no more than twelve coils. The polymer base rod of the SMB™ is ruggedly durable and lightweight and is guaranteed to instantly improve the action of your rifle. At only 4.7 ounces total weight, this one lightweight upgrade from Armaspec means the days of your factory buffer spring rubbing against the inner wall of the buffer tube will cease to exist. Because the SMB™ H2 series is a drop-in replacement, the entire replacement process can be accomplished in a few minutes. Priced competitively, this is one upgrade from Armaspec you can make on a budget that will completely change and enhance your shooting experience at the range.
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California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

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