The new MGI Quick Change Barrel(QCB) upper receiver system is the fastest-barrel-change advanced modular carbine system on the market today.
The new military S.C.A.R. advanced carbine specifications call for modularity of barrel systems in a quick-change package which will allow field replacement of barrels by the operator in less than 20 minutes(threshold) and 5 minutes(objective). The MGI QCB system provides barrel changes in any AR15/M16 in under 1 minute, using no tools. It stands alone in this category, with no other contenders even coming close. It has a robust locking block system with cam actuators which locks the barrel in "rock solid" and returns to zero with "sniper-grade" precision.
This MGI QCB upper receiver system will fit on any AR15/M16 lower receiver unit, without modification. Uses standard .250" pin. It has the flattop Picatinny Rail configuration. Comes complete with ejection port cover, forward assist, cam-operated QCB locking block, ventilated round free-float tubular handguard with rails at 3, 6, and 9 o'clock positions. No barrels included.
It accepts normal AR15/M16 barrels(without the barrel nut, delta ring, or handguard ring), so no special proprietary barrels are required. You can use your existing barrel, and others in this system, simply by removing the aforementioned items which are not needed with the QCB.
It comes from the man, Mack Gwinn, who designed the quick-change barrel system for the military Browning M2 .50cal Machine Gun, which is the most prevalent heavy machine gun in the free world military forces today.
This MGI QCB system is revolutionizing the AR15/M16 platform, bringing an already great rifle into the 21st century with the modularity that the new military needs require. Go from an entry barrel, to a duty barrel, to a sniper barrel, in just seconds, and also change calibers too!
The advanced modular AR15/M16 system is the military weapon of tomorrow, but it is now here for you today. If you want the latest high-speed weapons system in your hands, the advanced modular carbine system is it. Any 5.56 configuration, twist rate, barrel length, or profile is at your fingertips in less than a minute. Any other caliber, like 7.62 x 39, 5.45 x 39, 6.8SPC, 300 Whisper, 300 Fireball, 6mm PPC, etc, are only a barrel, bolt, and mag change away, and can usually be accomplished in the field in under 5 minutes. If barrels, bolts, and mags are available, the QCB can handle it(Note: some very large calibers like 50 Beowulf may need enlargement of the ejection port).
It comes with its own ventilated free float tube with Picatinny Rails already installed.
No longer do you have to purchase duplicate upper receivers, expensive duplicate free float systems, or other duplicate parts. You can now just change barrels to get your desired result, instead of all those costly uppers with their other attendant items. And, if you are carrying your other caliber systems, the MGI QCB gives much lighter and less-bulky carry, because you are carrying less things in smaller sizes.
If you fire full-auto, barrel changing is standard practice for machine gun use. When it gets hot, just change the barrel out and keep firing.
If you want only one weapon, and plan to use it for entry,duty, and sniper use, this is your package.
If you want other caliber options in the smallest, most versatile package, this is for you.
This amazing new system is available now.
It is only $550 (Barrel not included. Any AR15 barrel assembly w/o nut, delta ring, handguard keeper, will work in this unit.)(Gas tubes install/withdraw along with the barrel assembly when changing, and they remain attached at the FSB. Uses standard gas tubes, or aftermarket.)
Please email me with any questions/orders.
I am the MGI Factory Sales Managertwlyons@juno.com
Advanced modular carbine lower receiver, with interchangeable magwells for improved caliber-changing modularity, coming soon.
Boldly going where no-one has gone before.