A handy buffer weight list that I will add to when needed
I hope Slash is ok with me posting his buffer weights picture


BUFFER WEIGHTS

Standard Rifle - 5.15oz

Standard CAR - 2.9oz

H CAR Style - 3.77oz

H2 CAR Style - 4.7oz

H3 CAR Style – 5.6oz

9mm - 5.47oz, made of steel

Standard CMT carbine buffer - 2.9 oz.

CMT H buffer - 3.8 oz.

CMT H2 buffer - 4.1 oz.

Spikes ST-T2 - 4.3oz.

Armalite H3 buffer - 4.7 oz.

RRA 9mm buffer - 5.5 oz.
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Spikes 9mm buffers

ST-X SS 9mm buffer - 6.0 oz.

ST-9X SS Extended 9mm buffer - 8.5 oz.

ST-SST - 7.0 oz.
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Special purpose buffers designed for suppressed SMG's or 9mm carbines using high pressure (+P+) ammunition

9mm A - 6.3oz CAR style buffer

9mm B - 7.1oz CAR style buffer

9mm X - 7.9oz CAR style buffer
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Hahn Pistol cal buffer for 9mm, 40sw, 45acp, 10mm

8.0 to 8.1oz
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Slash buffers

I weighed an H2 buffer - pretty sure it is a Colt. Mine was 130.5 grams, which is 4.6 oz.
HK 416 buffer was 132 grams or about 4.7 oz.

I am not sure why the CMTs are out of spec.

I have seen many buffers of the same brand and make change weight .1 ounce + and - from the
standard spec.
At first I thought it was my scale until I used another

I have also seen variations in the 0.1 oz. range from buffer to buffer across the same manufacturer. Not a big deal IMHO.

The CMT H2 is 0.5 to 0.6 oz too light.

I have an H3 on the way. I thought I had one but cannot find it.

Some use a lesser grade of tungsten weight that is lighter that normal.

Some use a lesser grade of tungsten weight that is lighter that normal.

Lame. The funny thing is, Spike's Tactical is comparing their granular tungsten buffer to the weight of a CMT - even though the CMT is way out of spec.

The BCM H3 buffer I just got looks very nice. It is 160 grams (5.64 oz) - just as it should be.