The Spectre Ballistics International (SBI) Lynx 180 Match is an AR180 compliant lower you can use to build out a competition AR180.
Lynx 180 Match Specs:
- Very lightweight
- Uses AR triggers, trigger pins, safeties, mag release
- Uses non-beavertail AR grips
- Flared mag well
- Stock attach options:
- Buffer tube
- 1913 rear rail
- Magpul Zhukov Stock (Yugo variant)
- other mounts are about $30
What you’ll still need from your WK or WS-MCR for the lower build:
- Bolt hold open, spring, etc
Build peculiarities:
The lower went together really easily but I found 2 things that you should watch for when doing your build:
- The magazine well wall is pretty thin so you should screw your mag catch in all the way. If you leave it a turn or two out, it’s possible to press the mag release too far and have the catch rotate outside of the magazine well.
- You may have to stretch your AR safety detent spring or use a plug to get correct engagement. Play with it until you’re happy with the force required to use the safety.
- The buffer tube adapter won’t fit standard end plates so you won’t be able to use your fancy QD cup end plate.