- Product Code: RB5000
- Product temporarily out of stock
The KynSHOT RB5000 Hydraulic Buffer is a hydraulic recoil buffer for AR-15 rifles with a Mil-Spec carbine buffer tube (7" / 177.8 mm internal depth). It installs as a direct drop-in replacement for the standard buffer and works with any Mil-Spec buffer spring.
The patented hydraulic design absorbs the energy of the bolt carrier's rearward movement and helps eliminate bolt bounce during chambering. According to the manufacturer, felt recoil is reduced by 30% or more, muzzle rise is minimized and the sight picture returns faster between shots.
The buffer is made from 17-4 stainless steel throughout and uses Mil-Spec hydraulic fluids and seals. According to the manufacturer it is compatible with all AR-15 calibers, for example .450 Bushmaster, 7.62x39, 6.8 SPC, 6.5 Grendel, 7.62x40 Wilson, .204 and .350 Legend, as well as the POF USA .308 Revolution.
KynSHOT RB5000 Hydraulic Buffer AR-15 - Features:
- Product type: hydraulic recoil buffer
- Compatibility: AR-15 carbines with a collapsible stock and a Mil-Spec carbine buffer tube (7" / 177.8 mm internal depth); Mil-Spec buffer springs
- Recoil reduction: felt recoil reduced by 30% or more (manufacturer)
- Material: 17-4 stainless steel, Mil-Spec hydraulic fluid and seals
- Dimensions: length 92.7 mm (82.6 mm compressed), diameter 17.5 mm
- Weight: approx. 119 g
- Operating temperature: approx. -34 to +66 degrees Celsius (-30 to +150 F)
- Other: also rated for full auto firearms
- Made in: USA
Drop-in installation and reduced recoil make the RB5000 an easy upgrade for an AR-15 carbine.
Note: The RB5000 is not for pistol caliber carbines (PCC). For those, the manufacturer recommends the RB5007, RB5015HD, RB5000HP or RB5020SS.
Product text updated 26.09.2026.
