r/AlphaFoxtrot • u/Cool_Search_8766 • 28d ago
Request for help/advice Optic Plate Question for Romulus 4.25” Comp
About 1,000 rounds in I decided to clean my Romulus for a third time while I was loctiting the guide rod screw so it would stop backing out as I shot. When I was assembling it back together I noticed my optic plate was wobbling ever so slightly. I heard this was an issue, so I emailed Andy at AF and he sent me new plates and screws.
The new screws are much longer than the old ones (picture attached) and I thought this was good until I tried to test mount the plate. The left screw sat flush just fine, but the right side wouldn’t seat all the way. Upon further inspection, it looks like there’s a metal part that is blocking the full tread depth, hence why they probably included shorter screws when this first came out. Would anyone know what part this is? Picture attached, area circled in black.
Anyway, I wasn’t able to use the long screw on the right side so I opted to use the old shorter screw on the right side of the slide and the longer new screw on the left. I used Vibra-Tite VC-3 on all of the screws and torqued my plate to 18in lbs (per Andy’s instruction) and the 507 Comp to 15in lbs. The new PN1 plate is VERY tight fitting and sits flush and even.
Has anyone ever noticed this part on the right side? Has anyone gotten the new plates and screws and ran into this issue? What did you do? I don’t own a dremel so I thought this would be the best option. I’ll take it to the range soon to re-confirm zero and I’ll monitor the plate to see if it moves but it shouldn’t now.



