Another Retro Build Started

[Renegade04]

After much deliberation and procrastinating, I have finally decided to get started on a Model 604 build. I will have a Colt 604 upper coming next week and I have several surplus M16 parts on their way and should be here Friday or next Monday. I need to get a Nodak Spud XM lower ordered and source out a barrel. For now, things are off to a good start.

[Donut]

So I probably shouldn't tell you that I just sold my complete 604 build yesterday?

[TheChunkNorris]

Very nice!

[Renegade04]

So I probably shouldn't tell you that I just sold my complete 604 build yesterday?

Hopefully, they will enjoy it. I had an opportunity to buy a complete 604 build, but I really like to build my own. The reward is much greater. Also, I can build it to my satisfaction.

[Whytep38]

If you need a source for an A1 grip, I can recommend Sherluk. Just yesterday I received one from them that looked pristine. I prefer the A1 grip and three-prong flash hider, so I ordered the grip and old-style barrel wrench that has slots for installing/removing three-prong flash hiders. I was pleasantly surprised by the grip because my other A1 grips were a little worn when I got them, and I know Sherluk's reputation has a few spots on it.

[Renegade04]

If you need a source for an A1 grip, I can recommend Sherluk. Just yesterday I received one from them that looked pristine. I prefer the A1 grip and three-prong flash hider, so I ordered the grip and old-style barrel wrench that has slots for installing/removing three-prong flash hiders. I was pleasantly surprised by the grip because my other A1 grips were a little worn when I got them, and I know Sherluk's reputation has a few spots on it.

Thanks. I already have everything covered. The upper is done and test fired. It even has an original transitional BCG in it. I am waiting on a partial-fence lower from Nodak Spud. I have a bunch of original Colt parts waiting to go on it. I have a nice condition D stock and a slightly mottled A1 grip going on it too. I slapped the upper on my XM16E1 lower to test fire it.

This is what the finished product will look like (built 604 upper and XM16E1 lower).

[Renegade04]

Well, I finally got the 604 officially finished tonight. I will have pics up tomorrow.

[Renegade04]

Well guys, here is the finished product. I ended up using the Colt M16 internals (hammer, trigger, disconnect, springs, pins, detents, etc.). I did modify the fire control parts to keep it compliant. The lower was a blem. Harlan said it had some slight spots in the anodizing. I could not find them. I still had to do my magic on the lower to match the upper. It blended pretty well. The 604 upper has its original finish.















It even has a correct transitional bolt carrier.