Home / Accessory-Parts / Keystone Sporting Arms THREAD ADAPTER 3/8X24-1/2X28 View cart “ProMag AR-15/M16 MAGWELL VICE BLOCK” has been added to your cart. Sale! Keystone Sporting Arms THREAD ADAPTER 3/8X24-1/2X28$3999 Original price was: $3999.$3733Current price is: $3733. Only 2 left in stock Keystone Sporting Arms THREAD ADAPTER 3/8X24-1/2X28 quantity Add to cart SKU: KSA61-2M38 Category: Accessory-Parts Product ID: 113471 Description Description Adapter 3/8×24 to 1/2×28Fits Mini Mosin/Mini 1903 Related products Christensen Arms THREAD PROTECTOR 5/8-24 SS $2999 Christensen Arms TACTICAL BOLT KNOB $5499 POF USA TOMAHAWK CHARGING HANDLE 308 $10600 Wilson Combat SHOK-BUFF 1911 RECOIL BUFFERS $795