This is my first post because I am generally a "lurker". I have found that I learn more by reading or listening to others than posting or talking. I am not advertising for ArmaLite. I simply posted an option to help others who may be as dogmatic about excessive receiver play as I am. This is just an option without placing a foreign object inside the receiver. I recently completed a build that the upper and lower receivers had more wobble than what I like. These pins tightened it up.




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