16" SS 5.56 1/7 Match Grade Titanuim Nitride Barrel w/Matched BCG
Hardened Arm's barrels are made to our exacting specs right here
in the USA. Each barrel is button rifled for superb accuracy and
finished with Magnesium Phosphate for excellent durability.
16" SS HBAR Profile
MATCH chambered and matched to bolt
Chambered in 5.56 (Will also shoot .223)
Certified 416R Stainless Steel
1 in 7 Twist Six Groove Button Rifled
Carbine length gas port
M4 Feed Ramps
1/2x28" Threaded muzzle
Manufactured in the US
.750" at gas block
Titanium Nitride Coated
Titanium Nitride BCG
Phosphate Bolt- matched to chamber of barrel
Match Grade criteria, the groove diameter must air gauge
within .0003" of our standard diameter. Moreover, the uniformity of the
bore cannot vary more than .0001" for the entire length of the barrel.
These barrels are also completely stress relieved, and the bore is polished to
a gleaming surface finish by our most experienced lappers. Match Grade
stainless steel barrels includes hand lapping to a beautifully smooth surface.
Chrome-moly can be lapped to a similar finish at an additional charge.
Every barrel is stress-relieved in a vacuum furnace, hand
lapped, and inspected with a video bore scope. Quality is also assured through
the use of our Sheffield Air Gauge System and Rockwell Hardness Tester.
Stainless steel barrels are guaranteed to be dimensionally uniform to .0001″
and free from internal tool marks. Chrome-moly barrels are uniform to within
.0002″ end to end. We do not have different grades of barrels in the two types
of steel: just one, our best match quality.
Each match grade barrel includes the paired bolt- further insuring the
ultimate match performance.
barrels are made in the USA from solid bar stock, head spaced and are
ready to assemble. Gas port tuned for reliability with 5.56 or .223.