GU-37 Kit - 37mm Signaling Device
Parts kit for the GU-37. A portion of sales will be donated back to the developer, GoonGunDesigns.
Everything you need to complete the GU37 **Fencepost included!**
Per the GU37 Guide:
Any AR lower receiver will work with the GU-37, however the buffer tube
attachment point must be selected to accommodate the selected bolt system
- Kit does not ship to NJ or International.
All our Kits are backed by our 100% Quality Guarantee.
We ship our products via USPS to save you money.