ET Arms' buffer tube kit includes the buffer tube, castle nut and an ambidextrous end plate for AR-15 builds. The distributor lists the kit in a carbon fiber construction. Use it to mount a compatible buttstock on your lower receiver. Check that the tube profile fits your chosen buttstock before ordering.
- Fits: AR-15
- Includes: buffer tube, castle nut, ambidextrous end plate
- Material: carbon fiber (per distributor)
- Manufacturer part: ETAMILCARTUBE
