The Otter Creek Labs OPS/AE P.T.B. (Past The Barrel) Adapter, gen 2, is the one-piece mount for OPS 12, AEM5, OCM5 and OCM6 suppressors on barrels the over-the-barrel adapters cannot use: anything thicker than .75 inch or with less than 2.95 inches of exposed barrel. It threads onto any 1/2x28 muzzle and carries the can entirely in front of the barrel, adding 2.90 inches to the overall length. Rear wrench flats let you install or remove it with an ordinary adjustable wrench. Machined from H900 heat-treated 17-4 stainless, raw heat-treat finish.
Because the PTB puts the end cap a long way from the muzzle, OCL recommends checking alignment with a rod before the first shot. Imperfect barrel threads plus a tight-bore can could otherwise mean an end cap strike.
Will it fit?
| Works with | Otter Creek Labs OCM6 and OCM5, OPS Inc 12th Model and Allen Engineering AEM5 |
|---|---|
| Your barrel thread | 1/2x28, any barrel diameter |
| You also need | An alignment rod to check it before shooting; a OPS/AE/OC Thread Protector is handy when the can is off |
| Does NOT work with | HUB suppressors; 5/8x24 barrels; builds where you want minimum added length (use the OTB Adapter or Midway Adapter if the barrel allows) |
Specifications
| Manufacturer | Otter Creek Labs |
|---|---|
| Part number | OCL-701 |
| Type | One-piece PTB adapter, gen 2 |
| Barrel thread | 1/2x28 |
| Length added | 2.90" |
| Material | H900 heat-treated 17-4 stainless steel |
| Finish | Raw heat treat |
| Features | Rear wrench flats |
| UPC | 664533659090 |
This is a mount part, not a suppressor, so it ships like any other accessory with no NFA paperwork. We are happy to ship out of state.
Not sure it fits your can or barrel? Call (602) 715-2677 with your suppressor model and barrel thread and we will confirm before you buy.
| Manufacturer | Otter Creek Labs |
| Model | PTB Adapter |
| Type | Parts |
| Finish | Raw Heat Treat |
| Material | Stainless Steel |
| Mount Type | 1/2x28 |