The ProMag PM237 is a magazine block adapter which easily installs in a standard Ar-15 lower receiver to allow the use of 9mm Colt SMG pattern magazines. This is the key component that you must have in order to make your AR-15 9mm conversion work. The block is constructed of high strength polymer. Â
Specifications and Features:
- Converts from standard AR-15 lower to 9mm AR-15 lower
- Allows for use of 9mm Colt SMG magazines
- Made from high strength polymer
- Standard Pattern AR-15 lower receivers
SKU: MAR090-R
SKU: MAR033
SKU: MAR037
SKU: MAR108
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