How Long Is a Springfield Hellcat Pro? Dimensions Guide (With Picture)

Introduction

Ever wondered how long a Springfield Hellcat Pro is in real life? The Springfield Hellcat Pro measures 6.6 inches (16.8 cm) end to end. This guide covers its length, weight, and size next to common objects and other pistols.

Quick Reference List of Springfield Hellcat Pro Sizes

Reference Guide — Quick Reference List

Full Springfield Hellcat Pro Length and Overall Dimensions

The Springfield Hellcat Pro figures below are for the headline model described in the introduction. Exact numbers can shift a little by configuration, so treat them as published figures for that model.

Springfield Hellcat Pro Overall Length

The Springfield Hellcat Pro has an overall length of 6.6 inches (168 mm). That figure is measured from the rear of the frame to the muzzle. As a compact pistol, that length is the first number to check when comparing it with the other pistols in this set, because length, height and barrel length all move together.

Springfield Hellcat Pro Barrel Length

The standard Springfield Hellcat Pro barrel is 3.7 inches (94 mm) long. That is the barrel figure used in every comparison in this guide. The barrel is shorter than the overall length, as expected, because the frame and grip behind the slide make up the rest of the pistol’s length.

Springfield Hellcat Pro Length in CM and MM

The Springfield Hellcat Pro measures about 16.8 cm or 168 mm from end to end. As a decimal, that equals 0.17 meters. Multiply the Springfield Hellcat Pro’s 6.6 inches by 2.54 to check the math, and you get 16.8 cm. Use this length in cm for any metric listing.

Springfield Hellcat Pro Variants and Their Lengths

Not every pistol in this family is the same length, so here is how the verified variants compare. Only variants with published figures are listed here.

Hellcat Pro OSP

The OSP (Optical Sight Pistol) version is the optic-ready form of the Hellcat Pro. Its headline length, height and width do not change, but a fitted optic adds height above the slide. The standard 15-round magazine still gives a 15+1 capacity.

Hellcat Pro With 17-Round Extended Magazine

Fitted with the 17-round extended magazine, the Hellcat Pro holds 17+1 rounds. The extended magazine extends below the grip, so the pistol measures taller when it is fitted, and it needs a carry position that allows for that extra length.

Springfield Hellcat Pro Length Compared With Other Pistols

Side-by-side sizes show where this pistol sits among the other pistols in this set.

Springfield Hellcat Pro vs SIG Sauer P365 Length

The SIG Sauer P365 measures 5.8 inches (147 mm), with a 3.1 inches (78 mm) barrel, a height of 4.3 inches (109 mm), a width of 1.0 inch (26 mm), and a capacity of 10+1 rounds. That makes the Springfield Hellcat Pro about 0.8 inches longer than the SIG Sauer P365. Placed side by side, the size gap comes from length, height and capacity together, not from length alone.

Springfield Hellcat Pro vs Glock 43X Length

The Glock 43X measures 6.5 inches (165 mm), with a 3.41 inches (87 mm) barrel, a height of 5.04 inches (128 mm) with magazine, a width of 1.10 inches (28 mm) overall, 0.87-inch slide, and a capacity of 10+1 rounds (factory). That makes the Springfield Hellcat Pro about 0.1 inches longer than the Glock 43X. Placed side by side, the size gap comes from length, height and capacity together, not from length alone.

Springfield Hellcat Pro vs Glock 17 Length

The Glock 17 measures 7.95 inches (202 mm), with a 4.49 inches (114 mm) barrel, a height of 5.47 inches (139 mm) with magazine, a width of 1.34 inches (34 mm) overall, 1.00-inch slide, and a capacity of 17+1 rounds. That makes the Springfield Hellcat Pro about 1.35 inches shorter than the Glock 17. Placed side by side, the size gap comes from length, height and capacity together, not from length alone.

Springfield Hellcat Pro vs SIG Sauer P320 Length

The SIG Sauer P320 measures 8 inches (203 mm), with a 4.7 inches (119 mm) barrel, a height of 5.5 inches (140 mm), a width of 1.4 inches (35.5 mm) with the medium grip module, and a capacity of 17+1 rounds. That makes the Springfield Hellcat Pro about 1.4 inches shorter than the SIG Sauer P320. Placed side by side, the size gap comes from length, height and capacity together, not from length alone.

Springfield Hellcat Pro Weight and Magazine Size

Weight and capacity round out the picture of how big this pistol is.

How Much Does a Springfield Hellcat Pro Weigh?

The Springfield Hellcat Pro weighs 21 oz (595 g) as listed. Weight varies a little by configuration and by what is fitted, so always check whether a listing gives weight with or without a magazine. Because listed weights in this set use different bases — unloaded, without a magazine, with an empty magazine, or with a magazine — treat cross-model weight comparisons as published figures, not as readings from the same scale on the same day.

Standard Magazine Capacity

The standard Springfield Hellcat Pro magazine capacity is 15+1 rounds (17-round extended magazine available). That is the figure used in the comparisons in this guide. Capacity is a simple fact for size comparisons, since the magazine adds to the pistol’s overall bulk and grip length. Magazine sizes vary by configuration, so check any specific model before measuring.

9mm Cartridge Size (Measurement Facts)

The cartridge is often the next size question people ask. The facts below are measurements only.

9mm Bullet Diameter

The 9mm cartridge’s bullet is about 9 mm in diameter. The “9” in 9×19mm is the nominal bullet diameter figure. A 9 mm bullet is wider than a standard pencil lead and close in width to the diameter of a standard pencil’s eraser end, but use the published 9 mm figure for any listing, since sizes vary slightly by maker.

9mm Case and Overall Length

The 9×19mm cartridge case is 19 mm long. The complete cartridge, bullet included, is about 29.7 mm long. A credit card is 3.37 inches (about 85.6 mm) long, so the complete 9mm cartridge is roughly one-third of a credit card’s length.

FAQs About Springfield Hellcat Pro Length

How long is a Springfield Hellcat Pro?

The Springfield Hellcat Pro is 6.6 inches long.

How long is a Springfield Hellcat Pro in cm?

The Springfield Hellcat Pro is about 16.8 centimeters long, or 168 millimeters. Multiply inches by 2.54 to convert.

How long is a Springfield Hellcat Pro barrel?

The standard Springfield Hellcat Pro barrel is 3.7 inches (94 mm).

How much does a Springfield Hellcat Pro weigh?

The Springfield Hellcat Pro weighs 21 oz (595 g) as listed.

What is the capacity of a Springfield Hellcat Pro?

The Springfield Hellcat Pro holds 15+1 rounds (17-round extended magazine available). It is classed as a compact pistol.

Conclusion

Now you know how long a Springfield Hellcat Pro is, about 6.6 inches or 16.8 cm. Compared with everyday objects and other pistols, the size is easy to picture. Remember that length shifts slightly by model, maker, and configuration. For a general length reference, see NIST SI Units – Length.

Related Guides

• How Long Is a SIG Sauer P365? Dimensions & Size Guide (2026)
• Glock 43X Dimensions: Length, Height, Width & Size Guide (2026)
• How Long Is a Glock 17? Complete Dimensions Guide (With Picture)
• Sig Sauer P320 Dimensions: Length, Height, Width & Size Guide (With Picture)
• Weapons category

Sources: Manufacturer specifications (manufacturer product pages, checked October 2026).

Michael Carter

Hi, I’m Michael Carter, I write simple, everyday size guides so you can picture any measurement in seconds.