Brand catalog
Explore Heckler & Koch products across AR-15 & modern rifle platforms. Call Defender Outfitters in Greensboro to confirm current stock, pricing, configuration, or special-order timing.
Heckler & Koch models represented
These pages are a comparison and discovery tool. Call the store to verify current price, exact SKU, availability, and included accessories.
MR556 A4 81000827, 5.56 NATO, 16.5 in. threaded, 30+1 rounds. View the exact configuration, identifiers, specifications, and current availability.
Turn research into a store visit
Call to confirm current availability, then visit Defender Outfitters in Greensboro for local guidance and help finding the right configuration.
