Timber Creek Outdoors TCO Enforcer Build Kit Black - $129.92 (Free S/H over $75 or Free store pickup)

It's 15 inches.

I bought two of these kits- and returned one. It's a value at this price, but judging by the fact I had and returned one, it's not that good. The handguard is great- very light and has a clever barrel nut. The charging handle is not good- a lot of drag, and a ridiculously large ambi handle. Pistol grip is awesome- love the skeleton design. The ambi safety was nice- 45 or 90 degree. These are about the only things you should consider. The pins, forward assist, muzzle brake and trigger guard are just meh. The mag release- not good. Adding it up, the hanguard is worth let's say, $90 (it really is nice). Ambi safety, $35. Charging handle, garish as it is, $35. Grip, $35. So adding it up- it's a slight deal, and throw in the other bits (buffer tube), oh, and the QD make it worth getting one. I ended up with a ridiculous blue color that will have me mocked at the range. But I outshoot most, so I'll deal with it. I did get handguards and grips at a good price from Sportsman that are the best pieces- see if you can find those.