Answers for Building a Glock 21SF to handle .45 Super, does this spring have the increased pound spring for this application?

+1-800-504-5897 Help Center Check Order Status

About Us Policies Reviews How To

Entire Store
...
Apparel & Footwear
Astronomy
Everything Else
Eyewear
Hunting Gear
Lab Equipment
Military Gear
Outdoor Gear
Photography Equipment
Police, EMS & Fire
Shooting
Sport Optics
Sports & Hobbies

Shopping Cart

DPM + Gun Parts DPM Gun Parts DPM Mechanical Recol Gens 1-3 Reduction System DPM Mechanical Recol Gens 1-3 Reduction System Q&A Question - Building a Glock 21SF to handle .45 Super, does this sp DPM + Gun Parts DPM Gun Parts + Pistol Parts DPM Pistol Parts DPM Mechanical Recol Gens 1-3 Reduction System DPM Mechanical Recol Gens 1-3 Reduction System Q&A Question - Building a Glock 21SF to handle .45 Super, does this sp DPM + Gun Parts DPM Gun Parts + Pistol Parts DPM Pistol Parts + Pistol Slides & Slide Parts DPM Pistol Slides & Slide Parts DPM Mechanical Recol Gens 1-3 Reduction System DPM Mechanical Recol Gens 1-3 Reduction System Q&A Question - Building a Glock 21SF to handle .45 Super, does this sp

Please enable JavaScript in Your Browser JavaScript is not currently enabled in your browser and due to this our site will not work as it should. While JavaScript is disabled, you will not be able to add items to your cart or browse all product options. Our site is powered by industry leading security standards for your protection.
If possible, please enable JavaScript in your browser for the best possible experience. If you cannot enable JavaScript or you are having technical difficulties, please — we are always here to help!

Name

DPM Mechanical Recol Gens 1-3 Reduction System

As Low As $83.99 Save Up to 26%

View Product

Write a Review

Provide Your Answer

Continue As a Guest

Email

Nickname

Country

State

Saving...

Sign In or Create an Account (optional)

or Register

Having an account with OpticsPlanet.com makes writing questions and answers even better! We’ll save all of your questions and answers in your account, provide you easy access to them, so you can see how the community has responded.

If you’d like to add a question without creating an account, you can proceed with filling out the fields on this form.

Show

Sort by

Filter by

A

Answered by DPM Systems, member, from Greece, on September 30, 2025

Hi Vinny, this system will not fit your Glock 21SF. The correct item is the SKU: 1000003

Was it helpful to you? Yes | No

Share

Compare

Compare

Compare

Compare

Compare

DPM + Gun Parts DPM Gun Parts DPM Mechanical Recol Gens 1-3 Reduction System DPM Mechanical Recol Gens 1-3 Reduction System Q&A Question - Building a Glock 21SF to handle .45 Super, does this sp DPM + Gun Parts DPM Gun Parts + Pistol Parts DPM Pistol Parts DPM Mechanical Recol Gens 1-3 Reduction System DPM Mechanical Recol Gens 1-3 Reduction System Q&A Question - Building a Glock 21SF to handle .45 Super, does this sp DPM + Gun Parts DPM Gun Parts + Pistol Parts DPM Pistol Parts + Pistol Slides & Slide Parts DPM Pistol Slides & Slide Parts DPM Mechanical Recol Gens 1-3 Reduction System DPM Mechanical Recol Gens 1-3 Reduction System Q&A Question - Building a Glock 21SF to handle .45 Super, does this sp