Disappointed - American Built Arms Company Urban Sniper Stock

I had high hopes for this stock when I purchased it to mount onto my Aero M5 AR-10. I wanted a stock with an adjustable cheek weld and LOP for some long range shooting and this seemed to be spot on. Unfortunately, the cheek riser gets in the way of the charging handle - which makes this stock only mountable to the last 2 holes on the buffer tube. Much too long for my stumpy arms. The adjustable extension also is flimsy and weak. I read other online reviews that confirmed that the extension was fragile and prone to breakage. I ended up returning this and will look for other options.