Head to head

Walther PDP Compact 4″ vs Springfield Hellcat Pro OSP

By Cole Harlan, EditorUpdated Nov 5, 2026How we verifyEditorial standards

Two 9mm pistols sold with optic provisions. The biggest cited difference is weight: Walther prints 24.40 oz and Springfield prints 21 oz with the flush magazine. The Walther barrel is 4″ against the Hellcat Pro’s 3.7″. Checked November 5, 2026.

At a glance

Spec (maker label)	Walther PDP Standard Compact 4″	Springfield Hellcat Pro OSP
Caliber	9MM	9mm
Capacity	10 Round, 15 Round (SKU 2851229 = 15 Round); Magazines Included: 2	(1) 15-Round and (1) 17-Round magazine
Barrel length	4″ (102 mm), polygonal	3.7″ (Hammer Forged Steel, Melonite® Finish, 1:10)
Dimensions	7.50 x 1.34 x 5.40 Inch (Walther does not label the axes)	Length: 6.6″; Grip Width: 1″; Height: 4.8″ w/ Flush Mag, 5.3″ w/ Extended Mag
Weight	24.40 Ounce	21 oz w/ Flush Mag; 21.4 oz w/ Extended Mag
Trigger	PDT Performance Duty Trigger	Not yet verified
Optic cut	Optics Cut: Plate	Optics Ready
Source (checked Nov. 5, 2026)	waltherarms.com PDP Standard Compact 4″	springfield-armory.com Hellcat Pro OSP

The makers do not measure alike. Walther prints one unlabeled “Dimensions” line (7.50 x 1.34 x 5.40 Inch) and does not say which number is length, width or height, while Springfield prints length, grip width and height separately, so we do not match them number to number. Walther does not say whether 24.40 oz includes a magazine; Springfield’s 21 oz is with the flush magazine and 21.4 oz with the extended one. Capacity pairs only loosely: Walther lists 10- and 15-round versions, Springfield ships a 15-round flush and a 17-round extended magazine. The Walther barrel length comes from the model name and Walther’s EU specifications.

Which to pick (on paper)

If you want the lighter printed weight: the Hellcat Pro, at 21 oz with the flush magazine against Walther’s 24.40 oz.
If you want the longer printed barrel: the Walther, at 4″ against 3.7″.
If you want a named trigger: the Walther page lists the PDT Performance Duty Trigger; the Springfield page we captured prints no trigger name.
If you want the larger printed magazine: the Hellcat Pro lists a 17-round magazine; Walther’s SKU 2851229 lists 15 rounds.

We have not range-tested these; facts above are from the makers’ pages.

Frequently asked questions

How many rounds does the Walther PDP Compact hold?

Walther's page lists 10 Round and 15 Round capacities, with SKU 2851229 at 15 Round and two magazines included. Springfield lists a 15-round and a 17-round magazine for the Hellcat Pro OSP.

How much do the PDP Compact and Hellcat Pro weigh?

Walther lists 24.40 Ounce. Springfield lists 21 oz with the flush magazine and 21.4 oz with the extended magazine.

Are both pistols optics-ready?

Walther lists Optics Cut: Plate. Springfield lists the Hellcat Pro OSP as Optics Ready.

Walther PDP Compact 4″ vs Springfield Hellcat Pro OSP

At a glance

Which to pick (on paper)

Frequently asked questions

Sources

Keep exploring

At a glance

Which to pick (on paper)

Frequently asked questions

Sources

Keep exploring

The Gun Release Report