As the prices of centerfire ammunition rise, rimfire conversion kits become a smart investment for the shooter who wishes to fire a favorite gun, but can't afford to feed it. The Rimfire Adapter (RFA) is a replacement bolt carrier assembly for AR-15 rifles, and includes a 25 round Black Dog full-size magazine that slides easily into an AR-15 magazine well. With the RFA, a user can enjoy an entire afternoon shooting cheap 22 LR ammunition for the price required to purchase a single, 20 round box of .223 Remington. Installation is simple, and requires no gunsmithing or permanent alterations.
This is used to convert your AR to a .22 lr firing gun
It is not as accurate as the Partner system
Factory bolt carrier assembly is replaced with the RFA bolt adapter
Comes with a full-size, Black Dog brand magazine with a 25-round capacity
No tools required
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