CAR-15 retro build

In My Humble Opinion
1

Years ago, I wanted to build retro AR-15s/M-16s. I mostly got the rifle built, but I couldn’t get the front sight off of the barrel so that I could replace the tapered delta ring with a straight one, and I couldn’t get the roll pin into the rear sight; so I took it to a gunsmith today to get it finished. I have another upper-and lower-receiver with non-captive pins that I want to build into a CAR-15. I have a 1979 Colt SP-1 CAR-15 with the telescoping stock (and a 1979 Colt SP-1 AR-15), so I want a fixed stock for the retro build.

Question 1: Should I go for the early fixed stock with the swivelling sling swivel, or should I go for the A1-style with a fixed swivel?

Question 2: Should I use a chromed bolt carrier assembly, or a black one?

My intention is to replicate a ‘field modification’. I don’t know if the lower receiver would still have the old-style stock, or an A1-style stock. I assume the upper would have a black bolt carrier assembly, even though the upper itself has the non-capitive pins.

2

Never mind. I’ve discovered a decades-old cache of parts, so it looks like this will be a replica of the Colt SP-1 CAR-15.

I’m reporting this thread for closure.

3

We do not normally close threads upon request. However, in this particular case, since the topic is specific to your build and the questions have been resolved, there’s not much point in leaving the thread open.

Request approved. Thread closed.