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Joined: Sun May 08, 2011 4:37 pm
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Post Posted: Sun Mar 06, 2016 8:24 pm 
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The Colt XS series of pistols was a result of the short-lived Colt Competition partnership between Colt and C-More. The custom grip/thumb safeties and rear sight were patented designs from C-More's Ira Kay. Besides the XS parts, Colt Competition also offered C-More optics in rail and carry handle mounts for the AR-15 family of rifles. In return, Colt assisted in development of C-More's LSS underbarrel breaching shotgun, now adopted by the US Army as the M26 MASS.

Besides the XS-series, the parts were also used on the early production runs of the Colt Defender, and the rear sight can also be seen on ill-fated Z40 pistol. The latter was produced by CZ in a cooperative agreement with Colt. After Colt dropped the Z40 project, CZ sold the remaining pistols as the CZ40. When Kay and Colt broke ties, Colt quit using the parts, resulting in the XSE-series. The only part that remains available is the grip safety, produced by Caspian Arms.

Dovetail front sight
https://www.google.com/patents/USD401993

Tactical gunsight
https://www.google.com/patents/USD403734

Ambidextrous thumb safety
https://www.google.com/patents/USD415238

Posi-action beavertail grip safety
https://www.google.com/patents/USD420087

Posi-action beavertail grip safety
https://www.google.com/patents/USD452288

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