Springfield SA-35 Polished Blued: A Modernized Classic
We began here at UN12 with a focus on some of the wildest…
We began here at UN12 with a focus on some of the wildest…
There’s something to be said for the combination of traditional materials and modern…
Springfield Armory isn’t sleeping on the Echelon. They have now announced the introduction…
Drills. We use that word universally in the firearms training world. Before I lay out…
Magpul introduced its DAKA Grid Organizer system in 2023, but I hadn’t really become aware…
Setup & Shooting Instructions This drill is executed with a carbine at 50 yards. The…
Looking back, quite a few UN12 featured firearms have incorporated Scalarworks products, usually in the form of the company’s various quick-detach optics mounting solutions cataloged under the Leap lineup.
Leap mounts are available for a variety of optics including red dots, holosights, magnifiers, prisms, and traditional riflescopes, and in a variety of heights to tailor to varied shooting styles and build setups.

What caught our eye more recently though, while mulling options to outfit our current M4E1 project carbine, were Scalarworks’ open sight, or BUIS, options—called Peak.
Peak backups are available in two styles, fixed and folding. Peak/01 is the fixed A2 style and offers the familiarity of the classic fixed style while incorporating Scalarworks’ updated features and functionality, refined styling, and high build quality.

More relevant to our interests, Peak/02 is Scalarworks’ folding BUIS option. Scalarworks claims these are the lightest, most compact, and easiest to use folding irons available, and we believe it.
While the 01s are available in a single standard A2 height—1.42”—Peak/02s are available in either A2 or taller 1.93” height to interface with Scalarworks’ varied optic mount heights to provide a wider range of lower-third co-witness with equipped optics.
Additionally, the super compact design is tailored to use with the widest range of laser aiming modules, with the low-profile base included to facilitate mounting of the laser module comfortably behind the BUIS.

As admirers of improved aesthetics as much as enhanced functionality, we love their minimalist look and sleek presentation.
Scalarworks Peak iron sights are crafted from CNC-machined 7075 aluminum with 4140H steel internal components and furnished with a standard Type III black anodizing with a flash nitride finish.
The adjustment range is 51MOA elevation at a 15” sight radius and 46MOA windage at 15” sight radius. Peak/02 iron sights are available as front or rear individually or as a matched set. The sights ship with a nylon-patched fastener screw and the necessary T25 Torx driver for adjustment.
Complete specifications are listed below:
Center height over rail
SW2010: 1.42″
SW2020: 1.42″
SW2100: 1.75″
Adjustments
0.5MOA/click @15″ sight radius
Adjustment range
51MOA elevation @15″ sight radius
46MOA windage @ 15″ sight radius
Sight post
0.053″ width, non-rotating
Flip apertures
Same-plane 0.07″/0.20″ diameter
Weight
SW2010: 26g (0.92 oz)
SW2020: 31g (1.10 oz)
SW2100: 69g (2.44oz)
Scalarworks
PEAK/02 BUIS
MSRP: $149-$249
URL: scalarworks.com
Gatorz Eyewear and former Navy SEAL turned New York Times bestselling author Jack Carr have announced the launch of their most powerful collaboration to date. The 2025 Jack…
The YETI 12” Cast Iron Skillet is a blank canvas for generations of flame?fired food. Plus, it’s the perfect gift for Father’s Day.
Faxon and Refactor have joined forces to create this comprehensive guide, meticulously crafted with the shooter’s needs in mind. They’ve pooled expertise and conducted extensive research to present you with the best Glock barrels.
Designed to co-witness in the lower fifth of the optic window of a direct-mount, RMSc-footprint red dot—and now available for the HK CC9—XS Minimalist OR tritium night sights…
Exploring someone’s everyday carry (EDC) setup can be insightful. Wallets and keys are standard, but other items reveal personal needs and habits. Whether minimal or feature-rich, EDC choices…
Strike Industries has launched a new brand—Strike Arms—and has released its first serialized component: the Strike Arms Pistol (Compact) Frame. This is a striker-fired polymer frame designed to…
© 2026 UN12 Magazine
© 2026 UN12 Magazine
Wait! Don’t forget to
Notifications