The Kynshot hydraulic buffer (Kynshot part no. RB5000L) replaces a standard AR-15 buffer with a hydraulic damping unit tuned for .300 Blackout subsonic loads, smoothing bolt carrier slam and reducing felt recoil.

Key Specifications

• Brand: KYNSHOT.
• Type: hydraulic recoil buffer.
• Tuned for: .300 Blackout subsonic.
• Material: stainless steel.
• Length: 8 inches.
• Fits: AR-15 platform.
• Overall dimensions: 1.35 x 4.70 x 8.00 inches.
• Shipping note: no direct ship to California.

Frequently Asked Questions

What ammunition is this buffer tuned for? Subsonic .300 Blackout loads specifically, per the manufacturer’s size/finish designation.

What does a hydraulic buffer do? It damps the bolt carrier’s rearward slam hydraulically, softening recoil and reducing wear compared to a standard spring-and-weight buffer.

Buy the Kynshot Hydraulic Buffer, .300 Blackout Subsonic

Get the Kynshot Hydraulic Buffer, .300 Blackout Subsonic from KYNSHOT, browsable in our full AR Buffer System selection. Our Lubbock, Texas team ships fast, insured orders every day.