- Jul 29, 2014
- 50,123
If you are still looking, I'd try Del-Ton. I had a similar problem trying to find an HBAR upper. On their site, you can order a custom HBAR upper (advertised as a Heavy Barrel), and subtract components if you already have them. I finished off a Spike's lower, and I couldn't be happier with it.
http://www.del-ton.com/ar_15_barrels_s/4.htm
United Gun Shop in Rockville(and an IP here) carries those IIRC.