[m102404]

Must Do's - Functional

***the following info is not solely my own....it is a consolidation of the numerous posts in this thread***

There are just a few MUST DO things with these rifles for reliable function.
1. Loctite (blue/temporary) everything you don't want shaken off of it.
2. Part #66 must be replaced with a steel unit (CNC or wire cut)
3. On older models the Forward Assist button must be epoxy/super glued on or it'll shake loose and pop right off
4. Lubricate
5. Regular inspection


Steel Internals
- hammer/sear/etc...

Replacement Internals
- Part #66
just becareful when tearing down and reasembling the trigger pack the spring for part 66 (PART67) likes to shoot in random directions and get lost

Plastic-to-metal lower receiver swap
- I had a similar body issue with mine. I had to file the holes to get them to accept the pins for both the front and rear pins. The only issue I have (which is small and not a problem for me) is that I need to partially rack the bolt to get the rear of the upper to mate properly with the lower. As soon as this happens it's smooth sailing again, as the pin goes straight in without an issue.
- Ok, so after filing away for about 30 minutes with a round bastard file (carefully, but still making progress), I got the fitment down. Now it's about as rattle-y as I recall Chris and Rub's being.

The issue with non-firing, was an unrelated one, the white spacer on my bolt had moved forward -somehow- over the last month or two of non-use. Put it back in place and the gun fires a treat.

ULTIMATELY what I did, was file the front pin on the upper down slightly the allow play between the receivers, and then filed the rear to allow alignment of the pin.
- I had to ream out the tab and burnish it .. now it fits but is tight.. and has to be tapped in and out ( but is getting looser with use) I have had zero function issues thankfully


SCAR Specific
- The fix I performed earlier managed to work for a few weeks and then I noticed the roller pin coming lose again. Tried further deforming the end of the pin with grooves on it in an attempt to get it to stop coming loose still when in place. This lasted another couple games until about 3/4 of the way through the FR Night game on July 3rd where at one point the gun jammed on me. After opening it up noticed the roller pin had once again found it's way down beneath the fire selector.

Fixed the problem this time by removing the trigger assembly and replacing the hammer/roller/roller pin combination with new parts. So far things seem to be solid.
- After deforming the end of the pin a little so it stays in the hammer assembly better I reinserted it. Reassembled and gun is shooting just fine again.

I made sure to not sit there and try firing my gun repeatedly while it was in this 'broken' condition. Thereby hopefully avoiding any unnecssary wear on any other parts. Just to play it safe though I ordered some extra internal bits and a replacement set for parts #50, #51 and #52 so when the time comes I can rebuild this thing.

Forward Assist Button (older versions)
- So, I use epox and glue the forward assist button, the forward assist body and the first 2 coil of the spring altogether and custom cut the spring a bit. It's working so far.


I'm interested to see how's that retaining screw and the bolt finished look like. Maybe I ask Lanny to show me next time.
- I cross drilled mine and put in a pin