Hydraulic Buffer & Spring Package - For Pistol Caliber RDB
For CMMG Radial Delayed Blowback (RDB) Pistol Caliber Guns in 9mm, .40 S&W and .45 ACP
Package Includes RB5000HP 3.25" Buffer & Sprinco .223 Carbine Extra Power Buffer Spring (Red)
The CMMG Radial Delayed Blowback guns run great, but recoil impulse can still be noticeably reduced and shot recovery time decreased by using this buffer and spring combination. This brings these weapons to their full performance potential. Get the performance you desire and make your RDB amazing. Since the RDB action has a BCG that is the same length as a gas operated AR15 and longer than a blowback 9mm, it requires a buffer that is 3.25" in order to work in a standard carbine buffer tube and because the RDB doesn't require as much buffering as a standard blowback 9mm does. In order to use one of our 9mm buffers with an RDB gun, you would need to use an A5 buffer tube, but that is not necessary unless you have a 10mm.
* For 10mm models use an A5/AR10 carbine buffer tube with an RB5007 buffer and Sprinco Red Spring.
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What is the best buffer and spring set up for my 9mm AR PCC with a 5” barrel with a Shroud to make it 16” for competition as a short-stroke system?
Use one of two combinations:
The Springs are stronger because this is a short stroke set up and the bolt needs to slow down faster.
What is the best buffer and spring set up for my 9mm AR PCC with a 5” barrel with a Shroud to make it 16” for competition as a full-stroke system?
Use an RB5007 Standard Damped 9mm buffer and a Sprinco Red or other extra power .223 carbine buffer spring. Sometimes trial and error is necessary with buffer spring selection with various loads to find the sweet spot of performance and feel.
What is the best buffer and spring set up for my 9mm AR PCC with a 16” barrel for competition as a full-stroke system?
Use the RB5015HD High Damped 9mm buffer and .308 carbine buffer spring in a standard carbine buffer tube or use the same buffer and spring plus the PCC buffer weight in an A5 buffer tube for a slightly smoother/softer system.
What is the best buffer and spring set up for my 9mm AR PCC with a 16” barrel (PCC is Pistol Caliber Carbine)?
Use an RB5015HD (High Damped) 9mm buffer and a .308 carbine buffer spring such as a Sprinco Orange or JP .308 carbine spring.
What is the best buffer and spring set up for my 9mm AR PCC with an 8-11” barrel?
What is the best buffer and spring set up for my 9mm AR PCC with a 5” barrel?
Use an RB5007 (Standard Damped) 9mm buffer and an extra power .223 carbine buffer spring such as the Sprinco Red. If you run it with heavy subsonic bullets and a suppressor, then you may find that a JP .308 carbine spring works and runs with less spring noise. If your gun happens to cycle on the soft side, then you can use the JP .223 carbine spring in order to get less spring noise. The JP .223 carbine spring is slightly less powerful than the Sprinco Red spring.
The JP .223 carbine spring is slightly less powerful than the Sprinco Red spring.
What is the best buffer and spring set up for my CMMG Radial Delayed Blowback 9mm AR PCC?
Use an RB5005 AR10 Carbine Buffer or RB5000HP High Pressure AR15 Carbine Buffer with a Sprinco Red AR15 Extra Power Carbine Buffer Spring.
What is the best buffer and spring set up for my 45 ACP AR PCC?
Use an AR10/A5 carbine buffer tube and use an RB5015HD High Damped 9mm Buffer, PCC Buffer Weight and a JP .308 rifle buffer spring.
What is a hydraulic buffer in an AR-15?
A hydraulic buffer in an AR-15 is a specialized component designed to replace the traditional buffer in the firearm's recoil system. As an expert in AR-15s, I can tell you that the primary purpose of a hydraulic buffer is to improve the overall shooting experience by reducing felt recoil, minimizing bolt carrier movement, and dampening vibrations.
The hydraulic buffer functions using a piston filled with hydraulic fluid, which compresses as the bolt carrier moves rearward during the cycling of the firearm. This hydraulic compression absorbs the energy generated by the recoiling action, reducing the force felt by the shooter and allowing for faster follow-up shots.