Here's my LM7 set-up.

Testing starts this weekend.

Set-up:
- Colt M16-A1 lower
- Lakeside LM7 22LR belt-fed upper
- Gemtech Hornet F/A rated 22LR suppressor
- C-More red-dot sight
- Daniel-Defense free-float handguard
- Harris bipod

Color match between upper and lower is perfect.

www.lhup.edu/dfisher/photos/m16/lm702.jpg
www.lhup.edu/dfisher/photos/m16/lm703.jpg
www.lhup.edu/dfisher/photos/m16/lm704.jpg

I love it, that makes for a great looking setup. Keep us up to date on the range test

Hey drfcolt... When I got mine, I changed out the hammer spring for the "4 o'clock" spring and the disconnector spring before I took it out.  It ran quite well with only a hiccup or two per 100/200 round belt.  Once it breaks in, I figure it will run close to 100%.  I was running on a Colt RR with bulk pack Federal and Remington.  Oh, and don't forget to time the trip.  This upper is A LOT of fun.

Mike

Took it out for the first time on Sunday.

BEFORE I took it out I did the following important steps:
- time the upper for the host lower by filing the sear-trip in the upper until the bolt gap is .020 or less (mine is now between .008 and .012) - automotive feeler guages are nice for this - this only needs to be done once
- break in the cloth belts - I did this by opening them with a phillips-head screw-driver about the diameter of a 22LR cartridge - loaded them up and then twisted each loaded pocked 180-degrees and then crumpelled the entire belt like paper - it is VERY important to break in the belts - it only needs to be done once

Ran perfectly in semi-auto with the recommended CCI/Blazers and Win/Dynapoints.

Would not run at all in full-auto - two/three round burst and then light-primer strike.

Ran semi for about 400-rounds until the gun was very/very dirty and the called it a day.

Went to the Lakeside discussion web page and did some research.

Seems that the factory hammer-spring is too strong for F/A fire and throws the timing off - also is hard in the firing pin.

Also found that there is a new ABB (anti-bounce buffer) out for it that cures many F/A problems.

People running factory hammer-springs and normal buffers were having the exact problems I was having in F/A.

Getting ahold of Lakeside today to get an ABB and a 4-o'clock hammer-spring.

All in all, I had a great first outing - ran 2 belts first in S/A before even trying F/A, so I was feeling pretty good when the F/A failure started - felt like I had reached a mile-stone.

Can't wait to get the new parts and resume.

This upper is a ton of fun even in S/A and is cheap to shoot - can't wait to get it going in F/A.

You MUST do the break in stuff that I mentioned at the top or you are in for a long day even in S/A.

If the belts are not broken in properly, you will have a hell of a time even in S/A.

ABB: www.lakesideguns.com/webstuff/abb.jpg

4-o'clock hammer-spring: www.lakesideguns.com/webstuff/4oclock.jpg

I have been looking forward to reviews of the Lakeside upper since reading their ad months ago.

Sounds like a lot of fun and will especially be so once the minor mods are done.

Is the Gemtech can as efficient as many say?

great info.

I've got a Gemtech Hornet as well and really like it.  Below is a pic of it mounted on my LM7.
It is a shame they no longer make them.  All stainless.  Heavy but who cares for the applications most are using them for.
Only 3 baffles laser welded to one stack.  The stack all comes out as one unit from the tube.  Then you can use harsher chemicals to clean just the stack.

Thread jack deleted

I apologize, I didn't mean to jack your thread.  Thanks for the report, and Good luck!