11-05-2014, 05:39 PM
What people in the past 2 generations have grown accustomed to thinking are AR10's, were really a significant departure from the original AR10, especially when looking at weight and balance. This is because of the lengthening of the BCG, which necessitated lengthening of the receivers. Aluminum is light, until you start adding a lot of mass, and SR-25 era receivers are massive. That includes the 1996 "ArmaLite" Inc. (Eagle Arms) AR-10B/T, and the LMT MWS/L129A1.
This whole line of larger AR10's than the original receiver/BCG profile exists for one reason: compatibility with AR15 receiver extension tubes. That was viewed as critical for entry back into the market by Stoner and Reed Knight, has been both overcome, and accommodated with the GII, without having to enlarge the receivers, because they fit an AR15 diameter bolt carrier into a smaller upper receiver, with an enlarged flange around the barrel extension tunnel.
It has taken 21 years since the introduction of the SR-25 to get back to the original design intent that Stoner had, and you really get that sense when you hold and handle one of the original AR10's from the 1950's. It just goes to show that when a good design team thinks outside of the box, and focuses on what can be done, rather than what can't based on certain constraints, something revolutionary can be made.
This whole line of larger AR10's than the original receiver/BCG profile exists for one reason: compatibility with AR15 receiver extension tubes. That was viewed as critical for entry back into the market by Stoner and Reed Knight, has been both overcome, and accommodated with the GII, without having to enlarge the receivers, because they fit an AR15 diameter bolt carrier into a smaller upper receiver, with an enlarged flange around the barrel extension tunnel.
It has taken 21 years since the introduction of the SR-25 to get back to the original design intent that Stoner had, and you really get that sense when you hold and handle one of the original AR10's from the 1950's. It just goes to show that when a good design team thinks outside of the box, and focuses on what can be done, rather than what can't based on certain constraints, something revolutionary can be made.
NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com