Its aircraft grade aluminum housing ensures corrosion resistance under the harshest environments, and a new upgraded point-source emitter provides increased brightness in day or night conditions with 12 brightness settings. I haven't yet found an adapter plate for the M17 to use an RMR which allows a rear sight and some form of backup irons. I get your contract with the army on an M17 is with the DeltaPoint pro. But unlike previous versions of the X-Five, the Legion X-Five would have an optic footprint compatiple with the Leupold Deltapoint Pro…and of course the new Romeo1 Pro. Posted by 9 months ago. The DeltaPoint pro is both waterproof and fogproof, using a lightweight aluminum housing along with a spring steel shroud (optic weighs 1.95 ounces total), and a tool-less battery compartment that’s spring actuated for easy battery changes. From the rear edge, they are identical and the R1 is shorter in the front distance by about 1/8”. You would need to either mill the slide to accommodate the DPP or get an adapter plate. I would be suspect if you purchased 18 months ago - mine is less than a year old, and is not a pro cut - the easy way to tell is the milling at the front of the optic cut (closest to chamber) will have a slight arch to it for the Romeo1Pro and DeltaPoint Pro - the cut is also slightly longer, but hardly discernable to the eye with even with a Pro cut slide next to it. So you made the decision to put a red dot on your handgun. My Deltapoint Pro has proven to be very rugged and reliable. The motion activation technology has been used by Leupold for quite a few years now in the original Deltapoint and in the proven VX-R FireDot and Mark AR scope lines. Unfortunately SIG wasn’t able to time the release of the Romeo1 Pro to coincide with the Legion X-Five – it didn’t come out until October of 2019. Sig Romeo 1 pro or DeltaPoint. Sig Romeo 1 pro or DeltaPoint. At this point I think I have tried all the available options (obviously not the pro but have used the normal R1 on a 320 slide) and the best is really to have a slide milled for an RMR. The mounting hole pattern is identical but the DPP is like 1-2 mm longer than the original Romeo 1 cutout. level 2. Maybe for a … From what I’ve heard, Sig Sauer Romeo 1 Pro should have the same footprint as Leupold DPP (the standard DPP has a unique footprint). I have the ROMEO1 and the ROMEO1PRO, and the 1 PRO is definitely an upgrade. The real difference is the Romeo1 is sized for 6-48 thread screws and the DPP is M4. As 407K/507K feature a modification of the Shield RMS/SMS footprint, it would be best to contact Sig Sauer directly and inquire whether any modifications to the handgun are necessary. With an MSRP of $449.99, the ROMEO1PRO definitely stands at the top of the red dot market. Romeo 1 and DPP are almost identical in footprint and bolt spacing. … The DPP is a much better site the original Romeo 1 sucks. It will fit your 226 RX, but has all the upgrades of the ROMEO1PRO. Close. ADM makes a QD mount for it, the AD-TR. The ROMEO1PRO gives the shooter all of the features of the original ROMEO1 while adding some new, very well done, features of its own. level 2. The 1 PRO was lengthened to fit the new Delta Point PRO slide cut, and so as you mention, it won't fit your gun without surgery. I will admit, I’m a little PO at sig for doing this proprietary shit on the X5 Legion. 2. That is not the case with the new Pro model. Red dot showdown: Leupold Delta Point Pro vs Trijicon RMR (VIDEO) 12/06/2018 03:00 PM | by Ben Brown. The Romeo1 and the DeltaPoint Pro have different foot prints. Archived. The ROMEO1PRO brings a new level of durability and performance to the miniature open-reflex red dot sight. 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