New to the forum, I chose this one to post as it had the most comprehensive responses for this issue, but it was back in 2013: https://forums.brianenos.com/topic/181004-fn-slp-mark-1-new-jam-nightmare-1-bronze-piston/
I bought this gun for general home defense, but to also use whenever I do 3-Gun or skeet/trap (which isn't often).
I brought it with me for skeet/trap for my bachelor party this weekend and upon firing it jammed. I was incredibly discouraged. I made a video on the issue here: https://youtu.be/4stL6OVZcdw
Now, if you watch the video you're probably cringing when I try to pull the shell out, but when your $1100 gun isn't working you tend to get a little frustrated.
FN Shipped me 2 pistons, 1 for heavy (>1.5oz) and 1 for light (<1.5oz) loads. I have the light load piston installed as the shells are cheap 1oz bulk birdshot.
I found that many people fixed this issue by ordering the Browning Gold Piston. I went to order it right away, but it looks like this product is discontinued. I then went to look for alternative pistons that could possibly work, but couldn't really find anything solid. The only ones I found were these 2:
However, both of these say in the description that they WILL NOT work with 18" SLP shotguns...
I also ready that the Sure Cycle System could possibly fix this issue, but I don't think it's this part, I think the issue is the piston.
I'm also reading that reaching out to FN Customer Service is pointless, so before I turn there I'd like to see if anyone on this forum could possibly help me.
I'm really stumped here, really could use some help as this is incredibly painful. Thank you all!