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Mfg Item #: PM123
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This block allows the user to work on and install parts to AR-15/M16 lower receivers. The block slips into the rifle's magazine well and is held in place by the rifle's magazine catch. It is constructed of black injection molded polymer. Made in the USA.
ATTENTION: If you are ordering the last of an available quantity and you do not check with an associate of Crossroads Firearms before placing your order. You may be at risk of getting a full refund/ cancellation if our in house inventory or distributors are out of stock before your online order has been processed.