Ruger MK 1 (MKI) 6-7/8" Tapered Barrel to 1/2-28 Thread Adapter - Black Steel

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Thread your unthreaded Ruger MK 1 6-7/8" Tapered Barrel to 1/2-28 RH with this premium grade thread adapter. Made out of quality black oxidized steel, simply slip this adapter over the end of your barrel, tighten the brass set screw, and that's it! Now you can mount standard 1/2-28 RH accessories on the end of your unthreaded barrel! 


As not all barrels are the same, please confirm the following specs about your barrel:


Barrel diameter at muzzle: .56 inches

Front Sight Width: .37 inches


Product Details

Outer Threads: 1/2-28 RH

Material: Steel

Finish: Black Oxide

Set Screw: 1/4"-20 Brass (Allen Type)

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Additional Information

Gun Type:
Ruger Mark 1 6-7/8 Tapered Barrel
Caliber Size:
.22 LR
External Threads:
1/2-28 RH
Black Steel
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