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OpticsPlanet Exclusive Franklin Armory BFSIII AR-C1 Trigger - Binary Firing System for AR Platforms
As Low As $305.58 Save Up to 29%
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Dan's Review of OpticsPlanet Exclusive Franklin Armory BFSIII AR-C1 Trigger - Binary Firing System for AR Platforms

Go with the fostech. Not only is it a drop-in, but it works in all receivers. The issue you may have is with steel case ammo for that they sale an enhanced spring. You may also have to buy an enhanced firing pin for 7.62x39
Would Recommend: No
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