Know Your Modulus

The ZRODelta MODULUS is the Most Modular Handgun in the World.

The Modulus System

Maximize the performance and potential of the Modulus in 3 simple steps:


Available Front & Back Straps

Manufactured from hard-anodized 7075 aluminum, Front and Back Straps are the ergonomic control center of the Modulus. Designed, engineered, and manufactured to fit the widest variety of hand sizes and physiologies, this is where the Modulus truly becomes personalized to you. Front Straps integrate into a precision forward dovetail machined into the front of the handle. Back Straps, while truly a work of manufacturing art and key to the structural integrity of the handgun frame, slide into the rear of the modular exoskeleton frame and clip into the rear of the handle.

Smooth Front Strap The Smooth Front Strap comes standard with the Modulus Compact pistol, is 1.898” long and has a 0.27” flared base.

Finger Grooved Front Stap Get extra grip with the Finger Grooved Front Strap. Two 0.12” raised finger grooves are custom 3D-contoured to perfectly fit the widest range of finger sizes.

Standard Back Strap The Standard Back Strap comes, you guessed it, standard with the Modulus Compact. Like all backstraps, they are 3.12” tall and expertly contoured for the perfect grip. The Standard Back Strap has a medium base and tapers gently through the body, accommodating the widest variety of hand sizes before flaring upwards to protect hands from the recoiling slide.

Standard w/ Beavertail Back Strap The Standard Back Strap w/ Beavertail is for those who like to ride the handgun high and may not find enough protection from the recoiling slide with what came out of the box. Maintaining the same profile and grip angle as the Standard Back Strap, the Standard w/ Beavertail extends approximately 0.30” farther rearward at the flare near the web of the hand to protect high-riding grips from ‘slide bite’.

Enhanced 1911 Back Strap Although similar to the Standard Backstrap in that it lacks a beavertail, the Enhanced 1911 Back Strap alters the grip angle of the Modulus to that of a 1911 platform. Thicker at the base, there is significantly less taper through the body than the Standard Back Strap, making the Enhanced 1911 Back Strap perfect for those with larger hands and those looking to better square up sights upon presentation.

Available Dust Covers

Dust Covers not only allow the user to change the physical size of the firearm from Compact to Duty to Extended, but also allow the user to swap out handgun accessories like lights and lasers with ease and without losing zero due to our patented PUZZLE-LOCK design. Should shooters desire to build out Modulus configurations with non-ZRODelta slides and barrels, the only part required is the appropriate ZRODelta Dust Cover.

Compact The Compact Dust Cover has an overall length of 2.25” and has 3 Picatinny rail sections.

Duty The Dusty Dust Cover has an overall length of 2.72” and has 4 Picatinny rail sections.

Extended The Extended Dust Cover has an overall length of 3.56” and has 6 Picatinny rail sections.

Available Magwells

3 independent Magazine Wells manufactured from 7075 aluminum offer the shooter the ability to balance ergonomics, performance, and firearm specifications. Not only does each Magazine Well allow the shooter to change the magazine capacity of the firearm, each Magazine Well has its own feature set that is purpose-driven and sure to impress. All magazine wells feature our unique CLIP-N-CLICK system that helps maintain the structural integrity of the frame’s multiple modular accessories under the harshest of conditions.

Compact At only 0.63” tall and 2.37” long, the Compact magwell maintains a 0.09” micro-flared base and offers the Modulus a 15 round magazine capacity while fitting the widest variety of hand sizes.

Duty With straight sides that develop into a 0.17” flare, the Duty magwell is 1.28” tall, 2.37” long, and offers the Modulus a 17 round magazine capacity.

Extended Purpose built for competition, the Extended magwell expands significantly to 1.72” in height, 3.0” in length, and features a 0.35” flare to make magazine changes effortless. The Extended magwell is compatible with 17+ round magazines.

Available Mounting Plates

Our mounting plates allow you to put your favorite optic on top of your new favorite handgun. Precision machined from 7075 aluminum and hard anodized, our mounting plates integrate seamlessly with our slides for that picture-perfect fit.

US Optics DRS Plate Our Personal Favorite

Trijicon RMR Plate Mounting Plate for RMR Pattern Optics

Shield RMSC & JPOINT Plate Mounting Plate for Shield and JPOINT Pattern Optics

Available Slide Assemblies

ZRODelta slide assemblies are manufactured from 17-4PH Stainless Steel and are specially treated to put up with the added rigors of mating with a metal frame. Sleek, distinguished, and reliable beyond a shadow of a doubt, our slide assemblies come complete with barrels, sights, and fire control parts so all you have to do is rack and go.

Compact Ideal for everyday carry, our compact slide assemblies feature a 4.01” barrel and have an overall length of 6.85”

Duty Perfect for on-duty applications, our service-length slides feature a 4.58” barrel and have an overall length of 7.32”

Extended The right choice for competition or extended-range/specialty applications, extended slide assemblies feature a 5.31” barrel and have an overall length of 8.15”

ZRODelta Dealer Affiliate Program

Find out how participating dealers can be rewarded for Modulus accessory sales without stocking requirements. Go to the Sales Center to learn more!

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