Over The Barrel Silencer Models – OTB Series
Model OTB-175-X1-X2-556R (5.56 NATO)
Model OTB-175-X1-X2-762R (7.62×51 NATO)
X1 in Model = Length Over the Barrel
X2 in Model = Length Past the Barrel
Diameter: 1.75”
Over the Barrel Length: 4”, 5”, or 6”
Past the Barrel Length: 4”, 5”, 6”, 7”, or 9”
Model OTB-200-X1-X2-556R (5.56 NATO)
Model OTB-200-X1-X2-762R (7.62×51 NATO)
X1 in Model = Length Over the Barrel
X2 in Model = Length Past the Barrel
Diameter: 2.00”
Over the Barrel Length: 4”, 5”, or 6”
Past the Barrel Length: 4”, 5”, 6”, 7”, or 9”
All Models Include the Silencer Adapter available as either a Flash Hider or a Muzzle Brake.
Choice must be specified at the time of order.
On the 7.62×51 NATO, a Muzzle Brake is Included unless a Flash Hider is requested at time of order.
OTB-175-4-X-556R
4 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-175-4-4-556R
OTB-175-4-5-556R (223 Cal.)
OTB-175-4-6-556R
OTB-175-4-7-556R
OTB-175-4-9-556R
OTB-175-5-X-556R
5 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-175-5-4-556R
OTB-175-5-5-556R (223 Cal.)
OTB-175-5-6-556R
OTB-175-5-7-556R
OTB-175-5-9-556R
OTB-175-6-X-556R
6 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-175-6-4-556R (223 Cal.)
OTB-175-6-5-556R
OTB-175-6-6-556R
OTB-175-6-7-556R
OTB-175-6-9-556R
OTB-175-4-X-762R
4 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-175-4-4-762R (308 Cal.)
OTB-175-4-5-762R
OTB-175-4-6-762R
OTB-175-4-7-762R
OTB-175-4-9-762R
OTB-175-5-X-762R
5 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-175-5-4-762R
OTB-175-5-5-762R (308 Cal.)
OTB-175-5-6-762R
OTB-175-5-7-762R
OTB-175-5-9-762R
OTB-175-6-X-762R
6 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-175-6-4-762R (308 Cal.)
OTB-175-6-5-762R
OTB-175-6-6-762R
OTB-175-6-7-762R
OTB-175-6-9-762R
OTB-200-4-X-556R
4 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-200-4-4-556R (223 Cal.)
OTB-200-4-5-556R
OTB-200-4-6-556R
OTB-200-4-7-556R
OTB-200-4-9-556R
OTB-200-5-X-556R
5 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-200-5-4-556R (223 Cal.)
OTB-200-5-5-556R
OTB-200-5-6-556R
OTB-200-5-7-556R
OTB-200-5-9-556R
OTB-200-6-X-556R
6 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-200-6-4-556R (223 Cal.)
OTB-200-6-5-556R
OTB-200-6-6-556R
OTB-200-6-7-556R
OTB-200-6-9-556R
OTB-200-4-X-762R
4 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-200-4-4-762R (308 Cal.)
OTB-200-4-5-762R
OTB-200-4-6-762R
OTB-200-4-7-762R
OTB-200-4-9-762R
OTB-200-5-X-762R
5 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-200-5-4-762R (308 Cal.)
OTB-200-5-5-762R
OTB-200-5-6-762R
OTB-200-5-7-762R
OTB-200-5-9-762R
OTB-200-6-X-762R
6 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-200-6-4-762R (223 Cal.)
OTB-200-6-5-762R
OTB-200-6-6-762R
OTB-200-6-7-762R
OTB-200-6-9-762R
OTB-225-4-X-556R
4 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-225-4-4-556R (223 Cal.)
OTB-225-4-5-556R
OTB-225-4-6-556R
OTB-225-4-7-556R
OTB-225-4-9-556R
OTB-225-5-X-556R
5 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-225-5-4-556R (223 Cal.)
OTB-225-5-5-556R
OTB-225-5-6-556R
OTB-225-5-7-556R
OTB-225-5-9-556R
OTB-225-6-X-556R
6 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-200-6-4-556R (223 Cal.)
OTB-200-6-5-556R
OTB-200-6-6-556R
OTB-200-6-7-556R
OTB-200-6-9-556R
OTB-225-4-X-762R
4 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-225-4-4-762R (308 Cal.)
OTB-225-4-5-762R
OTB-225-4-6-762R
OTB-225-4-7-762R
OTB-225-4-9-762R
OTB-225-5-X-762R
5 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-225-5-4-762R (308 Cal.)
OTB-225-5-5-762R
OTB-225-5-6-762R
OTB-225-5-7-762R
OTB-225-5-9-762R
OTB-225-6-X-762R
6 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-225-6-4-762R (308 Cal.)
OTB-225-6-5-762R
OTB-225-6-6-762R
OTB-225-6-7-762R
OTB-225-6-9-762R
OTB-275-6-X-50BMG
6 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-275-6-10-50BMG
OTB-275-6-12-50BMG
OTB-275-6-14-50BMG
OTB-275-6-16-50BMG
OTB-275-8-X-50BMG
8 = Length Over Barrel
X = Length Past Barrel
Available Models:
OTB-275-8-10-50BMG
OTB-275-8-12-50BMG
OTB-275-8-14-50BMG
OTB-275-8-16-50BMG