Armaspec Stealth SRS Gen 4 H Recoil Spring Assembly

The Armaspec Stealth SRS Gen 4 H is a self-contained, multi-stage recoil spring assembly that works as a drop-in replacement for the standard buffer and spring in an AR-15 Gen 4 carbine buffer tube. It is intended to keep the buffer spring from rubbing against the inner wall of the buffer tube, which the manufacturer states supports smooth, quiet operation, and its second stage is described as reducing felt recoil. The assembly uses an H spring rate and is black in color, weighing 3.8 oz.

The assembly is built for 5.56x45mm NATO and .223 Remington chamberings on the AR-15 platform. The buffer mass is designed to stay under constant tension against the bolt carrier. Compatibility depends on the bolt carrier's rear opening, which should be over .60 square inches according to the manufacturer's notes.

• Type: Buffer tube recoil spring assembly
• Brand: Armaspec
• Model: Stealth SRS Gen 4 H
• Platform: AR-15
• Calibers: 5.56x45mm NATO, .223 Remington
• Spring rate: H
• Color: Black
• Weight: 3.8 oz