Calico Mac M-11 9mm Conversion Kits where designed to allow the Mac Enthusiast the ability to have a Higher Capacity Magazine. This Kit Designed for Open Bolt Full Auto and Open Bolt Semi Auto’s. NO SLOW FIRE SEMI AUTO’s. All you need to do is just pull off your original Upper & Drop ours on Cock it and Let it rock.
NOTE: THESE KITS ARE FOR OPEN BOLT FULL & SEMI AUTO MACS ONLY NO SLOW FIRE – ALL NFA RULES APPLY
Check Your State’s Rules prior to purchase.
***All firearms must be shipped / transferred to a local FFL dealer!***
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