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223 Remington Ackley Improved (no throat)$0.00
Rent a throating reamer with this tool to set Freebore you want.
AR-15 Extension Gauges (5.56)$15.00
These Gauges permit the checking of a barrel extension and barrel headspace without the need for a BCG or even a bolt. This set for 5.56 Nato or 223 Remington.
223 Remington Gauges$32.95
Description for the product.