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Easily Select The Correct Locking Shoulder

Stepped rod with diameters from .256" to .272" lets you choose the right locking shoulder for proper headspace. Critical for safe function. Essential when replacing a cracked, loose or worn locking shoulder. Use with GO/NO GO headspace gauges and a micrometer or dial caliper to determine proper size locking shoulder.


Big Book Catalog, Issue:69, Page:468
SPECS: 4140 Steel. .256" (6.5mm) to .272" (6.9mm) diameter. 10.812" (35cm) long.
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