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Barrel and Bolt Group Kit, 16.1" M4, 22LR
Everything you need to convert your existing upper to a dedicated .22LR. Just purchase a magazine and you are ready to go. For best performance use a round style hammer as notched hammers can cause function issues and 36 grain plated nose bullets have proven to be the best choice for function.
|Barrel Material||4140CM, SBN|
|Muzzle Thread||1/2 X 28|
|Gas Port Location||N/A|