**Attention:
-Our Vitrum trigger is included with every upper purchased.
-Lead times are 5-7 business days to process and ship orders.
-Gen 2 lowers and complete rifles are available now. For Gen 2 lowers, hover over “RIFLES” and then click “View all Rifles” and then click on the lower you want.
The Grovtec base cup accepts QD sling swivel. The Grovtec base cup can be threaded into the side cup holes on all MBA buttstocks (MBA-1, MBA-2, MBA-3 and MBA-4). Each buttstock has a side cup hole on both sides of the buttstock frame. The cup can be installed with an separately available installation tool or a 1/4″ Allen wrench. We also have QD swivels and complete kits available.
Threaded, steel base cups
For use with Luth-AR MBA stocks
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