ugaarguy
Member
- Joined
- Mar 19, 2006
- Messages
- 13,828
So, I recently bought a Norinco NHM 90 in 5.56 NATO. The rifle may or may not have been 922(r) compliant when I bought it. To be safe, I ordered & installed enough US made, US marked parts to slightly exceed the minimum for compliance.
- The standard metal thickness for AKM stamped parts (including the receiver) is 1mm: Chinese AKMs use 1.5mm thick steel for the stamped parts. Standard AKM buttstocks & forearms must be fit to the Chinese AKMs, but I like this because careful fitting allows you to get a tight customized fit to the rifle.
- The Chinese milled trigger group (at least in the NHM rifles) is a superb AK trigger group. It stinks that I had to replace it for US Compliance, but it was 3 of the minimum 6 Chinese parts I had to remove.
- Chinese AKs also have a slightly thicker barrel OD than other AKs. Good luck finding a replacement gas block or front sight base if you decide to fully de-ban a post '89 Chinese AK.
- There is no standard for .223 / 5.56 AKs. If it's not a Saiga, or if it won't use Bulgarian .223 Mags (thankfully mine will) get ready to pay through the nose for magazines. There are some AR-15 mag adapters that work with light modification to the rifle though.
- If you have to replace a piston on an AK bolt carrier for US compliance; then make sure you have a good drill & vise (or a drill press), and good metal drilling bits.
- There isn't a whole lot to these rifles. Aside from replacing a piston, they're pretty easy to work on. If you don't get an oddball Chinese rifle, AKs are fairly inexpensive, and parts - both new US, and foreign surplus - are readily available. If you don't get on in .223 / 5.56 mags are cheap & readily available. The rifles can be inexpensive, depending on which manufacturer / importer you choose.
- The standard metal thickness for AKM stamped parts (including the receiver) is 1mm: Chinese AKMs use 1.5mm thick steel for the stamped parts. Standard AKM buttstocks & forearms must be fit to the Chinese AKMs, but I like this because careful fitting allows you to get a tight customized fit to the rifle.
- The Chinese milled trigger group (at least in the NHM rifles) is a superb AK trigger group. It stinks that I had to replace it for US Compliance, but it was 3 of the minimum 6 Chinese parts I had to remove.
- Chinese AKs also have a slightly thicker barrel OD than other AKs. Good luck finding a replacement gas block or front sight base if you decide to fully de-ban a post '89 Chinese AK.
- There is no standard for .223 / 5.56 AKs. If it's not a Saiga, or if it won't use Bulgarian .223 Mags (thankfully mine will) get ready to pay through the nose for magazines. There are some AR-15 mag adapters that work with light modification to the rifle though.
- If you have to replace a piston on an AK bolt carrier for US compliance; then make sure you have a good drill & vise (or a drill press), and good metal drilling bits.
- There isn't a whole lot to these rifles. Aside from replacing a piston, they're pretty easy to work on. If you don't get an oddball Chinese rifle, AKs are fairly inexpensive, and parts - both new US, and foreign surplus - are readily available. If you don't get on in .223 / 5.56 mags are cheap & readily available. The rifles can be inexpensive, depending on which manufacturer / importer you choose.