With the Basic Upgrade you can get 16 rounds in the magazine. Simply remove the factory follower, spring and spring retainer. Insert the Shockbottle follower, new spring and the included spring retainer and slide on the factory basebad or the shock bottle standard capacity aluminum basepad.
With the +1 Shockbottle Colt basebad, follower and spring, you will get 17 rounds in the magazine plus 1 in the chamber for a total of 18 rounds in the pistol. Installation is easy, simply remove the factory follower, spring and spring retainer. Insert the Shockbottle follower, new spring and slide on the +1 Shockbottle Colt basepad and tighten the retainer screw with the included hex wrench.
* Please note that with the shockbottle follower, you will loose the slide lock to open on the last shot fired (the slide will not lock back on an empty mag upon firing the last shot).
Due to US restrictions I can only ship to US addresses. Sorry for the inconvenience.
Colt Basic (16 round) Magazine Upgrade
Colt / Walther / Umarex 1911 22LR
Magazine Modification. Package includes: +4 Follower, Magazine Spring and +1 black anodized aluminum basepad for added capacity. Together they turn your factory magazine into a 17 round magazine.
Don't want or need added capacity but want the durability and enhanced features of an aluminum basepad? The Standard basepad below easily replaces the factory plastic basepad and adds additional length to the magazine. The added length makes seating the magazine easier and is a must for pistols with magwells.
Colt 1911 A1 Government, Gold Cup and Rail Gun 10 & 12 Round Magazines
OUT OF STOCK
We do not ship magazines that accept over 10rds. to the following: California, Chicago, IL., Maryland, Hawaii, Massachusetts, New York State and Washington D.C.