OR3GUN Competition Machining for Mossberg® Shotguns
OR3GUN's Machining Services for Mossberg 930/935 series shotguns
now include CNC cut profiles for polymer forearms. Our shop scheduling necessitates that these
services be made available on a first come, first serve basis. Our reservation process can only be added
to your cart if our turn-around time for your supplied forearm is within our standard 10-day window.
with or without
The OR3GUN Project addressed the loose tolerances found in the OEM Forearm Retainer years ago with our
Competition Forearm Retainer. While the CFR was designed to complement the rapid acceptance of new dual and quad loading
techniques, the polymer forearm itself still required ramping and/or other modification to take full
advantage of the CFR. Over the years we've seen varied levels of success with this process, both from gunsmiths
and end-users. We've now opened our shop to this specific CNC machining on an individual basis.
The OR3GUN shop has developed CNC techniques and processes that perform the task of forearm modification for its
competition customers. We have thoroughly tested and refined two different profiles designed specific to the needs of
Twins and Quads loading methods.
The Twins Cut is best for preserving existing Hydrodip, Duracoat & Cerakote jobs. Ready to go out of the box, this cut is for
use with our CFR and your existing polymer Mossberg 930/935 forearm.
The Quads Cut requires a Quad Ready CFR and may warrant some end-user detail sanding for the best surface
finish. This is an extreme cut for competition
purposes! This cut can reveal small existing voids in your polymer 930/935 forearm, resulting from bubbles in the
factory polymer molding process.
With either cut, if the cutter runs into a large void in your forearm, it can (in very rare cases) destroy the forearm. This
is more likely to happen if your existing forearm has holes for a Matchsaver, rail, etc. These can catch the CNC's milling
bit and kick back on the part, causing a breakage if the area being machined is thin. We do everything we can to avoid
this potential issue with conservative cut speeds and the resulting longer machine time, but cannot be responsible
for hidden issues in your provided forearm.
While some home forearm ramping attempts can be 'fixed' by our service, we reserve the right to reject a forearm with
existing modifications that we have determined may undermine an effective machining job.
If you are otherwise unable or unwilling to part with your forearm for a couple of weeks, several customers have found
Mossberg Customer Service willing to drop ship a new forearm to us. Once you place your order, you should give Mossberg a
call at (800) 363-3555 and see if you can have part number '16773 - FOREARM SYNTHETIC M930/935' drop-shipped to your
attention at our address, detailed on your OR3GUN order confirmation page.
After completion of checkout, you will be directed to a page with instructions for getting your 930/935 forearm
to our Oregon address. You will need to mail (USPS only) your forearm to us with tracking information
for your reference. Once your forearm reaches us, we expect to have it back in the mail to you via USPS
Priority Mail within 10 days.
Mossberg®, 930 and 935 are trademarks of O.F. Mossberg & Sons, Inc. All rights reserved.
OR3GUN and The OR3GUN Project are trademarks of Logistix Productions, Inc. All rights reserved.
Specifications are subject to change without notice.