Home / Buffer Tubes / Armaspec
▼ 10% off
Armaspec Gen 3 SMB C Sound Mitigation AR-15 Carbine Buffer Kit

Armaspec Gen 3 SMB-C Sound Mitigation Carbine Buffer Kit

Best price
10% off MSRP 12 in stock at 22 retailers
Actual Weight (Complete System): Carbine: 4.41 oz.
Adjustable spring weight
Includes 1x Polymer Base Guide Rod, 1x Spring, 1x Buffer
Keep the buffer spring from rubbing against the inner wall of the buffer tube providing smooth and quiet operation
Made in the U.S.A.
Reduce felt recoil
Single-stage captured drop-in replacement for your standard buffer and spring

Specifications

Brand
Series
Captured
MPN
ARM258-C
UPC
810048492435
MSRP
$59.99
Weight
3.3 oz
Fits
AR-15 carbine buffer tube
Color
Black

Description

The Armaspec Gen 3 SMB-C Sound Mitigation Buffer is a single-stage captured drop-in replacement for a standard AR-15 carbine buffer and spring. It is designed to keep the buffer spring from rubbing against the inner wall of the buffer tube, which the maker describes as providing smoother and quieter operation.

The buffer weighs 3.3 oz and is black in color. Its spring weight is adjustable: the main spring can be trimmed at 0.25 lb per coil, up to a maximum of 12 coils, to reduce tension.

The unit fits AR-15 carbine buffer tubes and is listed for 223 Remington and 5.56x45mm NATO rifles.

  • Platform: AR-15
  • Buffer type: Single-stage captured drop-in
  • Calibers: 223 Remington, 5.56x45mm NATO
  • Weight: 3.3 oz
  • Color: Black
  • Spring adjustment: Trim 0.25 lb per coil, up to 12 coils
Stay Connected

Join our newsletter for the latest updates and exclusive deals.

ARMSAGORA

Compare prices on firearms, ammunition, and accessories from hundreds of trusted retailers. Find the best deals, track prices, and build your own loadouts.

© 2026 ARMSAGORA. All rights reserved.
Not an FFL licensed dealer. ARMSAGORA is a product comparison tool.