I have a preban Colt 20" A2 Gov't profile barrel (thin under handguards)for sale. The markings are C MP 556 NATO 1/7
The barrel includes the A2 flashhider,barrel nut, gas tube & pin, and a barely used (& like new)set of A2 round handguards or a decent set of A1 triangle handguards, your choice.
The FSB also has the sight post and bayo lug.
Price is $175.00 shipped to 48 states. Please email me for pictures or questions.
You can contact me at email@example.com