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). With an MSRP of $449.99, the ROMEO1PRO definitely stands at the top of the red dot market. 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. I will admit, I’m a little PO at sig for doing this proprietary shit on the X5 Legion. ADM makes a QD mount for it, the AD-TR. 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. The Romeo1 and the DeltaPoint Pro have different foot prints. Sig Romeo 1 pro or DeltaPoint. 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. 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. 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. From the rear edge, they are identical and the R1 is shorter in the front distance by about 1/8”. Maybe for a … So you made the decision to put a red dot on your handgun. level 2. The real difference is the Romeo1 is sized for 6-48 thread screws and the DPP is M4. Close. The ROMEO1PRO gives the shooter all of the features of the original ROMEO1 while adding some new, very well done, features of its own. I get your contract with the army on an M17 is with the DeltaPoint pro. 2. Red dot showdown: Leupold Delta Point Pro vs Trijicon RMR (VIDEO) 12/06/2018 03:00 PM | by Ben Brown. It will fit your 226 RX, but has all the upgrades of the ROMEO1PRO. 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. 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. I have the ROMEO1 and the ROMEO1PRO, and the 1 PRO is definitely an upgrade. My Deltapoint Pro has proven to be very rugged and reliable. Archived. The ROMEO1PRO brings a new level of durability and performance to the miniature open-reflex red dot sight. 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. 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. You would need to either mill the slide to accommodate the DPP or get an adapter plate. The DPP is a much better site the original Romeo 1 sucks. level 2. The mounting hole pattern is identical but the DPP is like 1-2 mm longer than the original Romeo 1 cutout. Romeo 1 and DPP are almost identical in footprint and bolt spacing. Sig Romeo 1 pro or DeltaPoint. That is not the case with the new Pro model. 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. And performance to the miniature open-reflex red dot showdown: Leupold Delta Point Pro vs RMR... 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