Marine Gun Builder (MGB) is the only source for a guaranteed PF45 trigger fix.
This Genuine Glock® 21SF or 20SF OEM Gen 3 Trigger Group is the exact solution to Lone Wolf dead trigger issues that have plagued PF45 builders. Polymer80 came to Marine Gun Builder (MGB) to solve this issue for the community after countless builders struggled with Lone Wolf dead trigger issues in PF45 frames. MGB developed the only tested and proven fix to restore full function. If you're struggling with a trigger that won’t reset or parts that won’t seat properly in the frame, this kit is the guaranteed solution to fix your Freedom tool. MGB has solved the Lone Wolf PF45 dead trigger issue that prevents proper function in Polymer80 frames—so you can stop troubleshooting and start sending freedom seeds down range. I got you, Patriot!
Every kit is personally assembled and tuned by MGB to be drop-in ready for your PF45 frame—no modifications required. Each trigger kit is precision-tested to First Time Quality standards, ensuring flawless performance.
PF45 Builders Trust MGB
Most PF45 builders unknowingly receive the wrong trigger parts, causing dead trigger issues, failure to reset, and poor sear engagement. Whether you choose MGB as your OEM Freedom Parts provider or not, you must ensure your trigger assembly includes:
✅ The latest OEM Glock 21SF/20SF Trigger – Marked 4256-3 on the cruciform, preventing failure to return to battery and other safety issues.
✅ OEM Glock SF Trigger Housing (5406) – The only correct housing for PF45 builds.
✅ Factory OEM Glock Components – No aftermarket or modified parts—pure OEM reliability.
Included in this PF45 Fix Kit:
🔹 Trigger Bar (SP04417) – Smooth-faced OEM Glock trigger bar for 21SF/20SF.
🔹 Trigger Housing (SP05406) – The only correct housing for PF45 fitment.
🔹 Connector (SP00343) – Factory 5lb standard connector for optimal trigger pull.
🔹 Trigger Spring (SP00350) – Factory Glock spring for proper reset function.
This OEM Kit provides perfect fitment and flawless function with:
- Glock G20SF, G21SF (Gen 1-3)
- Polymer 80 PF45
- Lone Wolf Timberwolf Large 10/45
- All Gen 3 Glock 20SF/21SF 3D-printed lowers
🔹 MGB Guarantee & Unmatched Value
Every Patriot who chooses MGB for their Freedom parts will receive a code shipped with their purchase for a Free Self-Paced Frame Assembly Online Course at Freedom Crew University.
🔥 MGB’s First Time Quality Guarantee:
✔️ Individually inspected and armorer-assembled for First Time Quality
✔️ 100% Fix Guarantee – If your PF45 had trigger issues before, this will solve them
✔️ Includes a FREE PF45 Fix Video Walkthrough & Course Access
✔️ Free Shipping
🔹 Disclosures & Policies
1️⃣ USA Shipping Only – No international sales
2️⃣ Shipping to billing address only – No alternate names/addresses
3️⃣ Frames, blocks, rails, or other items in photos are for illustration only and are NOT included
PF45 Trigger Fix, PF45 Dead Trigger Solution, PF45 Lone Wolf Trigger Problem, PF45 Custom Trigger Group, PF45 Trigger Housing Solution, PF45 Trigger Fitment Fix, PF45 Trigger Assembly Upgrade, PF45 Trigger Modification Kit, PF45 Drop-In Trigger Solution, PF45 Trigger Compatibility Fix, PF45 Trigger Reset Fix, PF45 Trigger Upgrade Kit, PF45 Trigger Problem Solver, PF45 Trigger Optimization, PF45 Trigger Customization Kit, PF45 Trigger Alignment Fix, PF45 Trigger Performance Kit, PF45 Trigger Reliability Solution, PF45 Glock 20SF 21SF Trigger Issue, PF45 Lone Wolf Trigger Fix
Reviews
Semper Fi devils, 👏 it's first time quality and July 4th, you dirty freedom lovers this fix rocked my . 45 .
Exceptional customer service and the response to my questions were answered fast. Just like the product states it is a guaranteed fix. I mistakenly used a LW lower parts kit and the trigger assembly was prohibiting the slide from fully going onto the PF45 frame. The one time it did go on the trigger was dead. After reaching out to MGB he reassured me it would fix my problem. Upon delivery I installed the first time quality part and just like that my problem was resolved.
I built mine for 10mm and this kit works great! I had noting but problems with the Lone wolf Kit.
Thank you MGB!!!!
Fast shipping. The drop in fix was as described. The gun runs great now.
If Marinegunbuilder says it'll work, it'll work. This gentleman diagnosed and prescribed a fix to my build issues in minutes and without charge. I obviously bought the parts from him which were high quality and fully assembled. PF45 's take a G20/21SF trigger housing and bar period. Parts dropped in and were smooth as butter.