Otter Creek Labs

The OTB Muzzle Brake works the same as the standard OTB mount, only with a built in muzzle device - Made from H900 heat treated 17-4 steel this one piece adapter will allow you to mount your OPS 12th model, OCM5 or AEM5 to ANY barrel with 1/2x28 threads that is .75 or less OD and a minimum o..

Locating collar for M4 spec barrels and ops inc 12th model, AEM5 and OCM5. Made from H900 heat treated 17-4 steel with a black nitride finish. Black Nitride Finish17-4 SteelCompatible with Ops Inc 12 model, AEM5 and OCM5..

Locating collar for M4 spec barrels and ops inc 12th model, AEM5 and OCM5. Made from H900 heat treated 17-4 steel with a Raw Heat Treat Gold finish. Raw Heat Treat Gold Finish17-4 SteelCompatible with Ops Inc 12 model, AEM5 and OCM5..

Highly effective flash hider made from H900 heat treated 17-4 steel with a black nitride finish. It features wrench flats and a pre drilled hole for pin/weld. Black Nitride Finish17-4 SteelWrench Flats..

Highly effective flash hider made from H900 heat treated 17-4 steel with a Raw Heat Treat Gold finish. It features wrench flats and a pre drilled hole for pin/weld. Raw Heat Treat Gold Finish17-4 SteelWrench Flats..

The midway adapter is the red headed step child of adapters. It's in the middle, hence the name. It doesn't reflex all the way over the barrel like the OTB series but it also doesn't add full length to the barrel like the PTB series. This adapter is for people who don't have enough exposed b..

Staying true to the iconic design with a few small tweaks and an upgrade in material and finish quality, this muzzle brake is made from H900 heat treated 17-4 steel with a black nitride finish. It features wrench flats and a pre drilled hole for pin/weld. ..

Staying true to the iconic design with a few small tweaks and an upgrade in material and finish quality, this muzzle brake is made from H900 heat treated 17-4 steel with a Raw Heat Treat finish. It features wrench flats and a pre drilled hole for pin/weld. ..

One piece Over The Barrel (OTB) adapter for ops inc 12th model, AEM5 and OCM5. Made from H900 heat treated 17-4 steel this one piece adapter will allow you to mount your silencer to any barrel with 1/2x28 threads that is .75 OD or less with a minimum of 2.95-3 inches of exposed barrel. Made ..

One piece Past The Barrel (PTB) adapter for ops inc 12th model, AEM5 and OCM5. Made from H900 heat treated 17-4 steel this one piece mount will allow you to mount your silencer to any 1/2x28 barrel that the O.T.B. adapter will not. Barrels with a OD larger than .75 or less than 2.95 inches o..

This is a knurled thread protector made from 17-4 stainless steel that fits the ops 12, aem and OCM pattern muzzle devices. It will also fit the OTB, OTB-MB/FH, PTB and MWA 1 piece adapters. Available in black or raw heat treat. Black Nitride Finish..

This is a knurled thread protector made from 17-4 stainless steel that fits the ops 12, aem and OCM pattern muzzle devices. It will also fit the OTB, OTB-MB/FH, PTB and MWA 1 piece adapters. Available in black or raw heat treat. Raw Heat Treat Gold ..