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ACE Folding Mechanism for AR M4 Stocks without Boss A504

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ACE - AR Folding Mechanism without Boss

Folding Mechanism with integrated AR-15 type Stock interface. Now any AR type stock can be mounted on any receiver block that ACE makes. That includes AR-15, A1 or A2 stock, AR stubby stocks, ACE ARFX-E, M.P. PRS, etc.

Features and Specifications:
Manufacturer Number: A504
Fits between the stock and receiver block
Only folds to the left. 

Item#: ARR-044-023
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