Armalite recently revamped their product lineup so you won't be able to find details of this model on their website any more. They do still offer a similar AR-10(T) rifle, with the main differences being the rifle is an A-series with a 20" barrel. I did manage to save the specs though before it disappeared from their site: 7.62 NATO & .308 7075-T6 Forged Flattop Receiver with Picatinny Rail and Forward Assist 16" Stainless Steel Match Barrel with an advertised 1 MOA accuracy Triple Lapped RH 1:10" Twist 4 Groove A2 Flash Hider Aluminum round free-float handguard Picatinny Gas Block (.398" lower than receiver rail) Forged Lower Receiver A2 stock I did not buy the rifle as a whole unit - I bought the complete upper receiver directly from Armalite last year but picked up the lower receiver used a few years ago. I'm not sure what kind of life the lower receiver went through before I had it but it's performed flawlessly for me since I've had it (it does have a scuff at the bottom of the magazine well though). The upper receiver has less than 500 rounds through it and is in perfect shape except for the tool marks that I so bone headedly inflicted on the barrel upon switching back to the factory flash hider from my muzzle brake. The charging handle has been upgraded with a Badger Ordnance lever but the original lever is included in case it's not to your liking. If you're not familiar with the Armalite AR-10s, they have two different series - this one is their B-series takes only Armalite steel magazines while their A-series will accept either their old waffle magazines or 308 PMAGs. The receivers between the two series are NOT interchangeable. I'm asking $1600, including two 20 round magazines and have two more for an additional $50.