This wrench also works for your M4 Lock Nut (Castle type).
1/2" drive.
Like all BCM® products, made in USA (410 Stainless Steel).
High quality tool like anything else from here...
Barrel Nut Wrench was very High Quality. Shipping was very fast. BCM never disappoints! Highly recommended
The wrench is solid and does the job perfectly. BCM service and speed of shipping are amazing.
A very well made product!
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Bravo Company makes outstanding products. Small item but needed another and fits great and got to me in a timely manner.
the tool functioned flawlessly
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