MBX Extreme
141.25mm 2011 Magazine, 9mm 24-Round
$129
Riley's match mags: 24 rounds of 9mm in a stainless tube with the blue basepad, no slide lock.
MBX's 141.25mm tube for STI, SV, Staccato, Atlas, Cosaint and the rest of the 2011s (not the new Staccato XC). The body is contoured the full length of the tube and the follower is wider for it, with round location holes and precision-cut feed lips. Riley's are the 9mm 24-round Competition build with the new Ultra Max follower, which is the one WITHOUT a slide lock, in plain stainless with the blue basepad and a right-handed catch. The basepad's hex set screw is not for adjusting. Built in Loudon, Tennessee. Not shippable to the capacity-limit states.
Where to buy it ↗Options
As configured
9mm 24rd Competition (no slide lock) · Stainless steel tube · Right-handed catch · Blue basepad
Also offered
9mm 22rd slide lock · black nitride tube · ambidextrous catch (+$4) · black, flag or red basepads
Shops add and retire options — see everything pictured, and check what's currently available, on the product page.
Links go straight to the maker or a shop that carries the item, and prices are theirs — they change, so treat anything quoted here as a guide. Nothing is paid placement.