Remington RP45 .45ACP 4.5" 15 Rnds w/two Mags - $319.19 (Buyer’s Club price shown - all club orders over $49 ship FREE)

This is my updated review of two Remington guns, the RP9 and the RP45.

First of all, the RP9 did give me nothing but trouble the first time I took it to the range, jam after jam after jam.

At a later date at home, I took the slide off and started to inspect the gun closely, I noticed that the RP9 had very rough rail guides on the frame, which will inevitably cause more drag on the slide as it would cycle, so I took some Mothers Mag and Aluminum Polish and fixed that by polishing the rail guides to a nice smooth and shinny surface, the slide cycled by hand very smoothly afterwards.

There were three other problems, many times the round (9mm) would nose dive as it was being pushed by the slide into the chamber and the tip of the bullet would get jammed between the bottom edge of the feed ramp and the magazine follower, I fixed that by removing the magazine spring and by bending the last top loop of the spring up a bit from its mid point, causing extra upwards pressure under the front part of the magazine follower in order to help alleviate the nose dive problem; bending up that section of the mag spring seems to have fixed the nose dive issue; by the way, that should also work on any mag of any gun that you might be experiencing nose dive issues with.

The other problem was that after shooting the last round and with the slide locked back, pressing the mag release button would not release the magazine, because apparently the metal tab that pushes down on the mag follower is too short and jumps off the follower as the Gun shakes violently with every bullet fired; so the way I fixed that was by adding four layers of painters blue tape to the back of the mag top side, so that the mag would move forward just enough to prevent the metal tab from falling off the mag follower, that’s the second issue I had with the Remington mags.

The last issue I noticed and which I was not able to correct, is that when the guns (both, RP9 and RP45) have a round in the chamber and a full mag inserted in, and the slide is racked back approximately one inch, the slide will not return to full battery, it takes a good push to force the slide back to full battery.

It seems to me that most of the problems that I experienced with the RP9 can be attributed directly to the magazines (the nose dives and not releasing the mag when pressing the mag release button), had Remington spent a little bit of time making sure that the measurements were exact on the mags, Remington would have produced a very nice gun, because the second time that I took the Gun (RP9) to the range, it ran flawlessly and out of several guns that I tried that day, the RP9 had the best results by making a ragged hole on the target less than 2” in diameter at 10 yards.

There were two other problems related to the gun, and that was the rough finish on the rail guides that are attached to the frame, and which I fixed by polishing, NOT sanding; and the second problem which I’m still facing is of the slide remaining out of battery when Gun is loaded with a round in chamber, a full mag, and the slide is racked back about 1” and then released.

The Remington RP45 compared with the RP9, ran well the first time at the range; if I recall correctly, I had one feeding issue but that was it, if I get more feeding issues with the RP45 I’ll add a few layers of blue painters tape to the back top side of the mag to make it move forward when it sits in the Gun, just as I did with the RP9, and will bend up at the mid section the last top loop of the mag spring.

I did not polished the rail guides located on the frame on the Gun RP45, and the roughness of those rail guides did not affect the cycling of the slide as it did with the 9mm, most likely because the .45 ACP moves the slide back after firing a round with more power than it does with the 9mm; the 9mm had very rough rail guides before I polished them, and the extra friction was probably not allowing the slide to fully cycle, creating lots of friction and jams in the slide the first time I went to the range.

Final thoughts, both guns ( RP9 and RP45 ) work, the 9mm required three modifications to make it run well, the .45 ran well without any modifications, but I would not carry any one of them because of their huge size and weight, and because of the initial failures I experienced specially with the RP9, the only way I would ever carry either one, would be after 500 rounds failure free, and if the out of battery problem fixed itself with usage, then and only then would I start to consider it at least for home defense.

I hope this will help anyone who might be thinking of buying the RP9 or RP45 as a CCW or for home protection.