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The Aero Precision Receiver Extension Buffer Tube is a Mil-spec. rifle receiver extension for A2 or A4 style AR15 rifles with a fixed buttstock. Perfect for your new build or as a direct replacement for worn out parts. Note: Will not work with AR15 carbines that have a collapsible buttstock
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.