First time ever. Limited Run!
Special series of stripped lower receivers.
The SL prefix is for “Stripped Lower”.
This SL prefix series will only be sold as a stripped lower.
This SL prefix series is not offered as a factory built BCM
lower group or rifle.
This SL prefix series does not say “BCM Rifle Company”
This SL prefix series has a model number of SX4.
The SL prefix series is otherwise identical to current BCM
lowers used on BCM factory built carbines and lower receiver groups.
Receivers Machined from Aluminum Forgings 7075-T6
Receivers Hardcoat Anodized per MIL-A-8625F, Type III, Class
Low Shelf for RDIAS installation
Low Shelf for Accuwedge use
Fire Controls marked SAFE and SEMI