Description
The Yankee Hill 5405A Hand Stop is a compact, lightweight indexing accessory designed for M-LOK handguards. Machined from 6061-T6 aluminum and finished in matte Mil-Spec hardcoat anodized black, this ambidextrous stop locks into any standard M-LOK slot to give the shooter’s support hand a defined forward reference point on the rifle.
Measuring just 1.75″ long by 1.25″ wide, with a 1.25″ height off the handguard and a barely-there .75 oz weight, the 5405A adds virtually nothing to the platform while delivering real control benefit during recoil management and transitions. The knurled outer face adds friction for a positive index, and the body also accepts a Q.D. sling swivel for shooters who want to combine a hand stop with a quick-detach sling attachment point in a single M-LOK slot.
Installation is straightforward with the included mounting hardware and a common 1/8″ hex Allen wrench. The 5405A is fully compatible with YHM’s BLACK DIAMOND and MR7 handguards, as well as any other M-LOK compatible rail system. Made in the USA.
