Krieger M1A 308 Winchester Match barrels for the M1A are short chambered, hand lapped and double stress relieved. Barrels offer a dimensional uniformity that is held to within .0001". Included with the barrel (but not installed) is a band type 1" wide operating rod guide.
M1A/M-14 and M1 Garand Premium Match Barrels are the heavy
pattern and are manufactured to the same internal finishes and
specifications as all of our Match Grade Barrels. They are 30
caliber, four-groove, with twists of 1-10, or 1-12. The gas
port is located in the rifling groove, not on a land; and the gas
cylinder, receiver threads, feed ramps, and the extractor groove
are timed off this groove. These barrels are completely turned,
threaded, and milled with this exception: They are unchambered,
and approximately .010" to .020" is left on the barrel shoulder for
your gunsmith to bring it into time with your receiver when he fits it.
All the critical exterior dimensions are precision ground on an
external grinder which will hold the diameter to a very close
tolerance. These heavy match barrels are available in chrome moly
which are furnished parkerized. All of these barrels are completely legal
as a service rifle under NRA rules.
Standard barrels for the M1A/M-14 are the heavy pattern which is a full 1.100"
diameter as far as possible from the breech to 1.000" diameter at the operating rod
guide and continues at .990" diameter forward to the gas cylinder. Included with the
barrels, but not installed, is our band type one inch wide operating rod guide.
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