We don’t sell firearms or ammo·Prices observed from retailers when connected·Field notes · click out to buy

SLx MD-21 Push Button 21mm Microdot with AutoLive, ACSS-CQB Red Dot Reticle

UPC 00818500018261

Compare prices

2 offers · 1 in stock · sorted by best price
RetailerPriceStockLast checkedDeal
East Valley TacticalBest$219.99In stock (15)37m agoGo to deal
Locked & Loaded$219.99Out of stock37m agoGo to deal

Prices and stock are from each retailer's latest check and can change. Price Dope may earn a commission from retailer links. Disclosure

Description

  • Product Details

The SLx MD-21 is an advanced micro dot sight that incorporates the latest technologies and materials to deliver exceptional CQB performance. Weighing only 5 ounces, the SLx MD-21 is both lightweight and rugged, featuring upgraded mounting hardware for guaranteed rigidity and precision when you need it most. If you are looking for a taller mount, check out the SLx 2.26″ mount for use with night vision or if you prefer a more headsup shooting position. The ACSS CQB variant comes with multi-reticle select allowing you to easily swap between the full reticle, chevron, chevron + BDC, or the chevron + horseshoe.

  • The powerful LED emitter features 12 total illumination settings and 2 night vision settings with an ultra-long runtime for full operability in any environment. Additionally, the AutoLive® technology shuts off the reticle when no motion is detected for two minutes and immediately turns on as soon as you pick it up.

Specs

BrandPrimary Arms Optics
Categories · Other
UPC00818500018261
TypeRed Dot
ModelSLx

D.O.P.E.Price history

Lowest price across connected retailers, from every price check we've recorded.

Current best
$219.99
Low
$219.99
Oct 10, 2026
High
$219.99
Oct 10, 2026
Tracking since
Oct 10, 2026
$219.99Oct 10, 8:10 PMOct 10, 9:05 PM
Recent price checks (2)
DateRetailerPriceStock
Oct 10, 2026, 9:05 PM PTLocked & Loaded$219.99Out of stock
Oct 10, 2026, 8:10 PM PTEast Valley Tactical$219.99In stock

Similar products

More from Primary Arms Optics

All Primary Arms Optics →
$219.99
East Valley Tactical
Go to deal