The DOLOS is designed to work with MILSPEC forged uppers. The DOLOS will not work with many billet uppers.
This kit includes the the following:
- Locking Collar (1.850-30 Thread Pitch)
- Tri Lug Assembly
- Castle Nut
- 1 Choice of Handguard
NOTE: THIS VERSION OF DOLOS IS NOT COMPATIBLE WITH ANY EARLIER VERSIONS OF DOLOS!