USMC M40A5 Build- Part 3: Receiver Truing

June 13, 2015 Bill Marr 0

USMC M40A5 Build- Part 3: Receiver Truing, is the third part of’s series, USMC M40A5 Build.  With a goal of cloning the USMC M40A5 (M40A3) sniper rifle, USMC M40A5 Build- Part 1: Gathering the Parts, […]


Remington 700 8-40 scope base conversion

October 15, 2014 Bill Marr 0

Many custom rifles are offered with upgraded 8-40 scope base screws.  These larger fasteners offer increased strength over the standard 6-48 screws found on most factory rifles. Reasons for upgrading to 8-40 screws include: preventing […]