Lately we've had some threads about unusually marked Colt stuff and I was interested in seeing if anyone else has saved any pictures of retro stuff that was out of the ordinary, whether it be a purposeful one off, or a production error. I dug around the archives some and turned up some interesting threads; please share if you guys have any pictures of something interesting!

Archived Thread of "Ugly Colts"

Blazenbirds collection of unusual Colt's

Early SP1 with custom Serial number and a bunch of 601 parts

Possible replacement/reweld M16A2 lower

XM16E1 with X suffix

SP1 with possible missing manufacturer information

I rehosted some of these so they dont get lost in the original posts. Hopefully none of the owners of the photo's mind. IM/Email me if you want one of your pictures removed.


^ Rollmark angled down some and is partially cut off my the top of the receiver


raysheen's hand stamped serial number SP1 with 601 parts


Missing Colt info


X suffix



X prefixes with custom/hand done serial numbers

I ran across a "CH" forge upper with a stamped / engraved "R"




And this one did not have a charging handle latch milled in it:

Interesting, thanks for sharing. I've only seen that on GM/HR uppers.

A little off the topic here,but where can I find the white substance used to enlighten the colt logo on the lower???

it's just chalk.  it wasn't something the factory did, something people do to get the markings to show up better.  if you want something more durable but not permanent, get a white grease pencil.

Walmart or Office Depot. They're called China Markers on the label. They wipe off a little too easy for my liking.

Testors white model paint is what I used on my M1 Garand. Thin thin thin coat and let it sit a bit and then wipe with a stripper soaked rag. ETA Repeat until it looks right.

Never tried it on an AR but it lasts quite a long time on Garands and Carbines. Regular cleaning and oiling won't remove it.

Back in the day they didn't use paint to fill engravings.  They used a wax like crayon called a filler stick.  You can still buy them if you can find someone who knows what they are.  Rub on and wax off.  Welders' used them.
It's what Springfield Armory and the like used in the 50's and 60's before time.

I use white nail polish.  Paint it in, let it dry then gently wipe off the high areas.

When I clean them it stays in place as well.

Also red works good for FIRE, "F"....

Brownell's sells both white and red sticks.  You rub it in, and wipe off the excess.  In a day or so, it is as hard and durable as paint.  Before I found these, I used to use white-out with basically the same results.

China Markers or Grease Pencils work for me and if/when they need touching up......it's free and easy. 1 China Marker will do 50 receivers and they cost like 40 cents each.