Originally Posted by
ForTehNguyen
do buffers actually break? I think the main parts you should be concerned for spares are the bolts and extractors. Most people get H2/H3 to slow the extraction of carbine gas systems and reduce recoil impulse, increases the reliability of carbine systems in many cases.
Buffers usually don't break but sometimes the face of them does get scratched up from a burr and/or rough finish on the back of the bolt carrier. Also sometimes the roll pin holding the plug on the end will walk out and drag across the buffer spring and can cause cycling problems.
On my personally owned buffers I tap out the pin and shorten it about 3/16" and then reinstall it with a dab of Acraglas and then center it up and stake the end of the tube so that the pin couldn't slide back out.
H is fine on a Colt 6920 unless you're shooting a lot with a suppressor. H2 will work also but no real need.
Last edited by Robb Jensen; 04-11-10 at 07:17.
Chief Armorer for Elite Shooting Sports in Manassas VA
Chief Armorer for Corp Arms (FFL 07-08/SOT 02)
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