Posted: 5/21/2026 6:11:08 PM EDT
|
I have a Super Duty upper and am interested in swapping to the newer MK20 Border Patrol rail. Will this be a simple swap by loosening the two cross bolts, or is the barrel nut different? I don't want to buy a Geissele barrel nut wrench if I don't need it. Thanks in advance. |
|
Originally Posted By Kisara: I have a Super Duty upper and am interested in swapping to the newer MK20 Border Patrol rail. Will this be a simple swap by loosening the two cross bolts, or is the barrel nut different? I don't want to buy a Geissele barrel nut wrench if I don't need it. Thanks in advance. Based on the images. It strongly appears they are the same. Looking at different photos shows the identical location of the locking ring groove and the wrench pin hole for the barrel wrench. |
Esstac’s Retarded Social Media Influencer