Feb 14, 2024 · Comparing a GRS using a Rifle buffer tube + spacer + 2 weights + 5015HD against an over gassed carbine upper and tuned rifle gas system for PMC XTAC193 on a Carbine lower w/ carbine buffer, A5A1 Buffer and Rifle buffer.

Jun 9, 2024 · If a top notch user experience is the prime concern, use a hydraulic buffered system (such as GRS*). It also allows tinkering later if you decide to try PCC type competitions (some Outlaw IDPA matches near me allow braced pistols).

The GRS is noticably softer recoiling with the hydraulic buffer. 5.5" barrel 9mm PCC tests: Now the difference between the K-Spec and the standard deadblow weight becomes more noticable.

May 28, 2023 · Here is the result of all the Gentle Recoil System (GRS) research I’ve done. Using these parts reduces felt recoil better than anything else I’ve tried for the otherwise “snappy” recoiling 9mm AR platform. The GRS consists of 4 elements: 1. Heavy buffer mass (somewhere around 11-12oz) 2. Reciprocating (deadblow) weight to mitigate bolt ...

Oct 2, 2024 · The AR9 is quite limited in mass by the 1" diameter of the moving parts - compare that to the STEN & the Sterling submachine guns - 2"? diameter bolts that recoil deeply into their receivers. Heavy but smooth.

Nov 8, 2024 · How do the blowback AR9's handle low powered ammo? I handload 115gr @1050 fps in my pistols for soft shooting range practice in my handguns. I've been putting together a shopping list for making an AR9 with GRS. Will an AR9 with …

May 28, 2023 · I've now used it for two lowers - one with the original GRS configuration using the JRC tube, and a second with the A5 tube and short stroked using the Taccom bolt. Both work great and are comparable to my CMMG RDB build.

Aug 7, 2024 · Comparing the 9.5oz. K-SPEC KAK Industries buffer + 1 Kynshot spacer weight in A5 buffer tube to the original Ge...

Aug 7, 2024 · The A5 K-SPEC setup, in my opinion, did a great job of mitigating felt recoil, practically as good as the original GRS. I was genuinely surprised. The Original GRS still feels a little better in a direct side-by-side comparison for reducing felt recoil, but it’s not a big difference.

Mar 1, 2021 · My every day load is 6.0 grs True Blue with any listed above 115 gr bullet. I use mixed cases and any SP primer. In a LC9 I like a lighter load due to recoil, but in my CZ 85 or M&P just right. All 3 of my AR9's love this load.