POF-USA Patriot Ordnance Factory, Inc.

BARREL [inches]	CALIBER	COLLAPSED [inches]	EXTENDED [inches]	WEIGHT [empty]
7.25	.223 / 5.56 x 45 mm	24	27-1/4	6.36 lbs.
9.25	.223 / 5.56 x 45 mm	26	29-1/4	6.70 lbs.
11.5	.223 / 5.56 x 45 mm	28-1/4	31-1/2	7.20 lbs.
11.5	6.8 SPC II	28-1/4	31-1/2	7.20 lbs.
12	.308 / 7.62 X 51 mm	30-1/4	33-1/2	8.48 lbs.
14.5	.223 / 5.56 x 45 mm	31-1/2	34-3/4	7.86 lbs.
14.5	6.8 SPC II	31-1/2	34-3/4	7.86 lbs.
14.5	.308 / 7.62 X 51 mm	32-3/4	36	8.94 lbs.
16.5	.223 / 5.56 x 45 mm	33-1/2	36-3/4	8.04 lbs.
16.5	6.8 SPC II	33-1/2	36-3/4	8.04 lbs.
16.5	.308 / 7.62 X 51 mm	34-3/4	38	9.04 lbs.
18	.223 / 5.56 x 45 mm	35	38-1/4	8.26 lbs.
20	.308 / 7.62 X 51 mm	38-1/4	41-1/2	9.24 lbs.
All weapons less than 16 inches are considered short barrel rifles (SBR), except the 14.5 inch weapons with a permanently attached muzzle device which makes them a 16 inch weapon.
Twist rates: .308 / 7.62 x 51 mm "5R" Polygonal RH 1 x 10 twist hand-lapped button rifled .223 / 5.56 x 45 mm "5R" Polygonal RH 1 X 8 twist hand-lapped button rifled 6.8 SPC II "4R" Polygonal RH 1 X 11.3 twist hand-lapped button rifled Barrel threads: .308 / 7.62 x 51 mm - 5/8-24 .223 / 5.56 X 45 mm - 1/2-28 6.8 SPC II - 5/8-24