|Core15 Hardcore Lower Receiver for 5.56x45mm|
Imagine this, slightly longer and
beefier to accommodate the .308.
(Photo courtesy of Core15 Rifle Systems)
I have always wanted an AR-10. The swollen .308win (7.62x51mm NATO) version of the ubiquitous AR-15 .223rem (5.56x45mm) just seems a good idea. Same platform; same features; same method of operation. These all cut down on auto-pilot retraining when switching between a short-range carbine and a medium to long range high powered rifle. It allows for quick reloads and rapid fire, just as the AR-15, except firing the much more powerful .308, the standard sniper round. However, with every good idea you can typically find at least two bad problems. I've always found at least one with AR-10 type rifles: unless you're handling a prohibitively expensive custom shop rifle, they usually feel junky. It's kind of like a 15 year old kid who suddenly grew six inches over the summer; nothing fits right and his suddenly larger size makes him seem awkward and clunky. But this issue will hopefully be resolved with the Core 30. They certainly have a good start in concept.
Take a look at the picture of the Hardcore receiver, above. If you're familiar with the AR platform you'll notice one thing right away - the over-sized trigger guard is machined as part of the lower receiver. I've always wondered why this was never done. It seemed an obvious point of potential strengthening in the standard mil-spec lowers. Now, with the Hardcore line of lowers, Core15 has done it. But that's not all. They also incorporate Core15's standard beveled mag well, for quicker and smoother reloads, and every receiver is hard anodized for extra durability. But from the start, each Hardcore receiver is CNC machined out of a single billet of 7075-T6 aluminum that has been heat treated and stress relieved, making it inherently stronger.
The real trick with the Core 30's potential...