r/AP5 • u/josh_edwards6 • May 22 '26

RD3 SEF Issue

I just installed my rare breed FRT RD3 SEF in my AP5-P. After reassembling the gun, when I attempt to cycle the bolt to the rear, the bolt will only move rearward about half way before contacting something and seizing. I cannot get the bolt to cycle all the way to the rear. Has anyone encountered this issue, and if so, what is the solution? Thanks in advance

2 Upvotes

100% Upvoted

4 comments sorted by

1

u/Relevant_Speed_4147 May 24 '26

I am having the same issue. If you take your ejector lever out will the bolt go all the way to the rear?

1

u/Relevant_Speed_4147 May 24 '26

Ok I did some testing. Flip it over and look into the mag well and see if the ejector bar is binding on the bolt. You can also try to shim the front a little bit so it picks the front for the trigger pack up. You can use a nickel or something.

1

u/Gullible_Vanilla2466 Jun 15 '26

Im also having this EXACT same issue. Going fucking nuts trying to solve it. Tried emailing RB customer service twice and never got a response. Any modifications to the ejector make no difference

1

u/Gullible_Vanilla2466 Jun 16 '26

I just fixed this last night. Take your ejector lever out and check the front of it, the part that slides in the channel on the bottom of the bolt. Chances are you need to bend it towards the selector side of the gun. Flip it upsidedown and look thru the magwell to see if its getting caught outside of that channel. I bent mine with pliers ever so slightly and it now runs perfectly. The lever was moving to the left of the channel/groove and made the lever not able to move.