In April 1967, the U.S. Army purchased 510 Colt 629 Commandos for use by troops assigned to the Military Assistance Command, Vietnam Studies and Observations Group (MACV-SOG) designating them XM177E2. From this point onwards, this would be the mainstay US Military AR carbine for quite some time until it would be superseded by the M4A1 in the 90s.
As such, G&P continues their trend of remaining in the M16 by hearkening back to a specific period in history to pay homage to a modern classic. With the original CAR-15 triangular handguard and extending butt-stock gone, the proto-M4 shows the shift into furniture we recognize today as gospel. The ribbed, cylindrical foreguard and 6-position butt-stock was cutting edge for its time but it has of course gone on to be the textbook benchmark.
The 11 inch barrel makes use of the distinctive XM177E2 flash hider, an elongated cylinder 4 inches in length with muzzle brake holes around the front. As is typical for G&P ARs, it clocks in at a cool 330 FPS with a 130 round midcap magazine. Of course, as a standard Version 2 AEG from G&P it is the very prime example weapons platform that sets the standard for highly aftermarket modifiable / upgradeable systems.
Many would argue though, of course, is that this weapon needs no modification as the whole point is that it recreates a specific classic weapon but no one could blame you for wanting a little more power under the hood so if you are interested do talk to the sales department as see what they can advise in terms of internal modifications.