11/16-24 RH to 3/4 NPT Thread Adapter

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For those with 11/16-24 RH threaded barrels (.450 Bushmaster, .458 Sacom, Some Bull Barrels), this adapter converts your externally threaded barrels to 3/4" NPT.


Inner Thread: 11/16"-24 RH

Outer Thread: 3/4 NPT (National Pipe Thread)

Material: Black Oxidized Steel


*Please note the look and adapter design my vary from what is shown.

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Warranty Information

Lifetime Warranty
We are confident in the quality of our products and our stellar customer support, which is why most of our products are backed with an unconditional Lifetime Warranty. We guarantee ALL of our products against defects in materials or workmanship for the life of the product. We will repair or replace defective products free of charge. You need only ship the defective item back to us with a description of the issue, and our fast-acting service team will solve the problem or replace your product to ensure that you are 100% satisfied – NO MATTER WHAT!

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Additional Information

Black Steel
Internal Threads:
11/16-24 RH
External Threads:
3/4 NPT
Gun Type:
Bull Barrel (Large Alternative Thread)
Caliber Size:
.450 Bushmaster
Caliber Size:
.458 Socom
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