Which A5 buffer to use with SR-15 11.5 CQB MOD 2?

[lt211]

not heavygunner8 but I would stick with the A5H2 (buffer weighing 5.3oz)..

[heavygunner8]

I emailed KAC, and they said they do not recommend the A5 system with their 11.5 upper. I’m guessing they covering their asses liability wise?

[lt211]

did you ask them what buffer weight they recommend? A5H2 system I would think would be more versatile, than the H3... jmo

[heavygunner8]

did you ask them what buffer weight they recommend? A5H2 system I think would be more versatile.

No, but when you buy the KAC 11.5 sr-15 upper it comes with HH buffer. So if did ask that’s what they’ll recommend.

[lt211]

can't find the weight of that HH buffer anywhere, anyone ?

[Jwknutson17]

I currently run 3 different KAC 11.5 CQB mod2 rifles with A5 systems. Same with the Mod1s. They all have A5H3 buffers and thousands of rounds through them. Use a Colt rifle spring. If running crap ammo use a lighter buffer.

The HH Knights buffer is the same as a H2, at about 4.6 oz give or take.


Edit... I think I already replied to this thread saying the same thing. Redundancy I guess.

[lt211]

ok thanks, I see that ROG Tactical ships the KAC 11.5" SR-15 E3 CQB MOD 2 MLOK Complete Upper with the "Kinght's Armament Buffer 4.6 oz"..

[tom12.7]

I emailed KAC, and they said they do not recommend the A5 system with their 11.5 upper. I’m guessing they covering their asses liability wise?

Pretty much so when parts go out of their control. Very similar to most other companies responses would be for that.

[tom12.7]

I currently run 3 different KAC 11.5 CQB mod2 rifles with A5 systems. Same with the Mod1s. They all have A5H3 buffers and thousands of rounds through them. Use a Colt rifle spring. If running crap ammo use a lighter buffer.

The HH Knights buffer is the same as a H2, at about 4.6 oz give or take.


Edit... I think I already replied to this thread saying the same thing. Redundancy I guess.

Pretty much this, with few exceptions.

[heavygunner8]

Is the colt spring and the Vltor A5 spring any different? Do I need to use the colt spring?