**Please plan for a 2-3 week turn around**
This service includes the conversion of any off the shelf AR15 barrel to work in a Lewis Machine and Tool MRP upper.
You will need to supply:
- AR15 barrel (any length, any caliber)
- MRP upper
- Cross Bolts
This conversion does not include a gas block or gas tube. We recommend using an SLR low profile gas block with the conversion due to it's low profile and quality.
**Please note that this is a permanent conversion and once done, the barrel can only be used with the MRP Platform**