Super Gas Block with Nitride coating – The bore of the SGB is machined to closely fit around .750” diameter mounting bosses found on most M4 Carbines and AR-15 rifles.

Midwest Optics is a new up and coming firearm optics & accessories store. We provide good prices and excellent service. All our products are on hand and in stock, absolutley NO dropshipping. Cheap flat rate shipping. We are getting more products in every week and our inventory is always updating. Feel free to shoot us a message if you have any questions

MidwestOptics.net
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D Wall Industries LLC