04-15-2022, 03:26 PM
I like JP SCS, but you may need to add heavier tungsten weights depending on how your rifle is gassed...https://www.jprifles.com/buy.php?item=JPSCS-TUNGSTEN
If you prefer the standard recoil spring and buffer, then I would go with Sprinco... https://www.sprinco.com/ar-buffer.html
The heavier the buffer or stiffer the recoil spring, the slower the bolt carrier velocity and vice versa...Ejection patterns can be a good indicator for using the proper buffer weight, spring buffer combo...https://www.sprinco.com/SPRINCO-DOCS/Hor...0Chart.pdf
https://www.sprinco.com/SPRINCO-DOCS/Gas...Tuning.pdf
Now to answer your question LOL, It all depends on how your rifle is gassed... I can run my rifles with a standard carbine buffer with no problem, as I use adj gas blocks... A carbine Grendel with a standard gas block as yours, I would go no lower than the H-1. You should be able to run the H-2 buffer or even the H3 with no problem... Once again, it all depends on how your rifle is gassed...
To say which weight buffer is best without knowing how the rifle is gassed, the condition and weight of the recoil spring or even if the rifle is with in spec can be a shot in the dark...
If you prefer the standard recoil spring and buffer, then I would go with Sprinco... https://www.sprinco.com/ar-buffer.html
The heavier the buffer or stiffer the recoil spring, the slower the bolt carrier velocity and vice versa...Ejection patterns can be a good indicator for using the proper buffer weight, spring buffer combo...https://www.sprinco.com/SPRINCO-DOCS/Hor...0Chart.pdf
https://www.sprinco.com/SPRINCO-DOCS/Gas...Tuning.pdf
Now to answer your question LOL, It all depends on how your rifle is gassed... I can run my rifles with a standard carbine buffer with no problem, as I use adj gas blocks... A carbine Grendel with a standard gas block as yours, I would go no lower than the H-1. You should be able to run the H-2 buffer or even the H3 with no problem... Once again, it all depends on how your rifle is gassed...
To say which weight buffer is best without knowing how the rifle is gassed, the condition and weight of the recoil spring or even if the rifle is with in spec can be a shot in the dark...