Lower Parts Kit, Billet
This Umbrella kit supplements the parts included with our billet lower but we purposely leave out the trigger--we expect most of you will want to go with a high-end trigger/hammer set so we're leaving that up to you. Everything else you need is included to complete your billet lower receiver less the required stock assembly (receiver extension, end plate, extension nut, buffer, action spring, stock). In addition to the high quality individual pieces, this kit includes Battle Arms Development’s BAD-CASS ambidextrous 45° short throw selector and Umbrella’s own Grip 23. Parts kit includes the following components:
- Pivot Pin
- Pivot Pin Detent, stainless steel
- Pivot Pin Spring, 17-7 PH stainless steel
- Takedown Pin
- Takedown Pin Detent, stainless steel
- Takedown Pin Spring, 17-7 PH stainless steel
- Magazine Catch
- Buffer Retaining Detent
- Buffer Detent Spring, 17-7 PH stainless steel
- Selector Detent
- Selector Spring, 17-7 PH stainless steel
- Battle Arms BAD-CASS-ST Ambi Selector (45° throw w/long & short standard levers)
- Umbrella Grip 23
- All components, material, and packaging made in the USA
As with all Umbrella products, these kits are made to the finest standards and carry an unconditional guarantee against material defect and manufacturing failure. Assembly by a qualified Armorer is required.