Handguard / Rail Will Fit List

This will be a constantly evolving list, however for sure the following hand guards allow unmodified fit and function with the OPS-416 gas piston system. We sent sample OPS-416 units to the top rail manufacturers in the country and results are still coming in.

Factory Certified as Will Fit.

Included high-heat polymer hand guards provided with every Osprey Defense Gas Piston kit.
Midwest Industries 17P Rail System
Midwest Industries 20P Rail System

Otis Technology’s TRS rail with Otis Rail Riser accessory.
*Spikes Tactical B.A.R.
American Built Arms MOD1
Surefire 500 series integrated hand guard with light.

Magpul MOE Hand guards with slight modification to upper heat shield
*Please keep in mind that free float hand guards that are approved for our system will require the purchase of a modified op-rod.

Several manufacturers have notified us that they are working on design revisions to specifically accommodate this system, so watch for those in the very near future!

With slight modification there are MANY rail systems out there that work just fine. Our system is typically lower profile than other solutions so clearance is due to rail system internal dimension width to accommodate the unique kidney shape of the piston chamber.

If you are unsure about a rail fit, or if you are a rail manufacturer looking to ensure your product will work with the OPS-416 system, please check out THIS PDF CLEARANCE DIAGRAM (CLICK HERE)