COLT SMG UPPER - AN OVERVIEW

Colt Firearms Colt's Producing Company, previously Colt's Patent Firearms Producing Firm can be an American firearms maker, Started in 1855 by Samuel Colt.  It's the successor corporation to Colt's earlier firearms-earning endeavours, which started in 1836. Colt is noted for the engineering, manufacturing, and advertising and marketing of fir