Otter Creek Labs
Otter Creek Labs OPS/AE P.T.B. Adapter Gen 2 - Raw Heat Treat
- SKU:
- OCL-701
- MPN:
- OCL-701
- Availability:
- In Stock If You Can Add To Cart!
- Shipping:
- Calculated at Checkout
Description
OPS/AE P.T.B. Adapter Gen 2 - Raw Heat Treat
The OPS/AE PTB (Past the Barrel) Adapter Gen 2 is a one-piece silencer mount engineered for use with OPS Inc. 12th Model, AEM5, and OCM5 suppressors. Designed to accommodate barrels that are not compatible with standard Over-the-Barrel (OTB) adapters—either due to oversized diameter or short exposed length—this unit enables solid mounting on a wide variety of .223/5.56 barrels threaded 1/2×28.
Crafted from H900 heat-treated 17-4 stainless steel, the Gen 2 PTB Adapter integrates rear wrench flats for easy install/removal and extends your suppressor’s placement 2.90" forward, aiding clearance and alignment.
One-Piece Steel Construction
Machined from H900-treated 17-4 stainless for exceptional strength
Past-the-Barrel Adapter Design
Solves compatibility issues with barrels over 0.75" OD or with less than 2.95" exposed barrel length
Adds 2.90” to System Length
Extends suppressor further forward from the muzzle
Rear Wrench Flats
Simplifies install/removal using a standard crescent wrench
Suppressor Compatibility:
OPS Inc 12th Model, AEM5, & OCM5
Thread Pattern
1/2×28 (standard AR-15 muzzle thread)
Made in the USA
Mounting Notes & Considerations
- Alignment Check Recommended – Always use an alignment rod prior to live firing to ensure concentricity, especially with tight bore suppressors
- Barrel Requirements:
- 1/2×28 thread
- Not compatible with barrels under 2.95" of exposed thread
- Not intended for barrels under 0.75" outer diameter