Colt SP1 6001 carbine

[imarangemaster]

My SP1 rifle came from Colt with 20 rd mags that had the capacity limited to 5 by means of a U-shaped piece of sheet metal under the follower. Easily removed by removal of the floor plate.

Neal

I drilled out the rivet on some Colt 5 rounders, shortened the "U" limiter and made 10 rounders out of them. Once the dumb law passes and I have to register them, the number of rounds in the mag is irrelevant, and I can take the blocks out.