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Quarter Circle 10 .357 Sig / .40 S&W / 10mm Auto Bolt Assembly

Quarter Circle 10 .357 Sig / .40 S&W / 10mm Auto Bolt Assembly
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Availability: Out of stock




These Pistol Caliber Bolts are machined by us here in Tucson, Az. Our bolts have the “Glock” cut in them allowing them to run through a standard Glock magazine with no hangups. In addition they are ramped for the use of standard and other similar AR15 hammers. Bolts come complete and ready to run.

This bolt will allow the use of both .40 Smith & Wesson along with .357 Sig rounds.

Bolts come with firing pin, extractor and a weighted mass in the rear.

Additional Info

Additional Info

SKU 357-40-Bolt
Manufacturer Quarter Circle 10
Finish No
Barrel Length No
Caliber No
Configuration No
Option No
Gas Length No
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No


Customer Reviews (1)

No commentReview by Leonard
High Quality Product.
Just wish the price could be sweeter. (Posted on 7/9/2016)

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