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Something I like about my M16 clones, in addition to the fixed stock, is the buffer just works.
The rifle buffer is 5.2 oz.
The OG carbine buffer is 3 oz. and, over the years, they keep making it heavier to compensate for the extra bolt speed from the gas-port being so much closer to the chamber.
The H3 carbine buffer is, in fact, heavier than the rifle buffer at 5.4 oz.
An old timey solution was to use a 5.5 oz. buffer from a 9mm CAR-15.
One of the reasons I like the mid-length gas system is it works well with both the standard and slightly heavier H buffer (3.8 oz.); but Dottie has shown that the rifle stock and buffer work fine with this gas system too.
I think it's because the rifle buffer and spring are longer.
Semi-auto guns are a lot less sensitive to the buffer weight than full-auto. While you're resetting the trigger, there's plenty of time for the gun to catch up.
What buffer weight should you run?
Check your ejection pattern.
Adjust accordingly!
The 3-4:15 ejection flight is perfect for putting hot brass on the neck of the shooter next to you when shooting on a tight firing line. Rifle maybe working well but jezus does it sting and sizzle when it hits. My piston XCR ejects at th 1-2:00 position. I'll make an adjustment. Thanks.
ReplyDeleteThat chart is AR specific. The Robinson might be putting the brass where it's supposed to go for that system.
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