MKIV SERIES 70 GOVERNMENT MODEL This model is essentially a newer version of the 1911A1. It has the prefix “70G” from 1970-1976, “G70”. Appeared on ColtAutos.com during the Spring of 2007: “Gold Cup National Match – Series '80 Colt MK IV - Caliber: 45 ACP, serial number SN099xx, Price: $825,.

I'm looking to buy a Colt 1911 70 series MK IV with a 70G serial number that put the date of production around 1973. I understand that this pistol was made with a Collet barrel bushing. What I want to know 1. Are there any inherent issues with a 70G serial # pistols? Can the Collet barrel bushing be replaced with a regular barrel bushing? The offer I'm getting is great, but I'm not sure if I want to buy yet. On one hand you say you are looking to buy and on the other you say you are not sure you want to buy yet?

__________________ Avoid the temptation to replace everything on your brand-new 1911 just to make it 'better'. The Joiner And Cabinet Maker Ebook Store. Micrografx Picture Publisher 9 Free Download. Know what you're changing out and why. You may spend a lot of money fixing things that weren't broken to begin with. Shoot at least 500 rounds through it first, then decide what you don't like and want to improve. Regarding vintage 1911s, pre-1970 pistols are highly collectible in original, unaltered condition and should NEVER be refinished or modified as it completely ruins their monetary value.