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AR15.COM
4/6/2004 1:28:24 AM EDT
Do you offer a 20" w/5.56mm chamber (chrome lined bore and chamber)?

Also how much of an advantage does 4150 steel (Bushmaster) have over 4140???

What exactly is a shaved bayonet lug?
4/6/2004 3:21:07 PM EDT
[#1]
Sorry, no chrome lined 20" barrels.

The shaved lug leaves the body of the lug, but removes the knubs needed to attach a bayonet.