Genuine Glock® 23 Upper Parts Kit OEM Gen 3 from Marine Gun Builder. Never gamble with your safety - choose authenticity, choose reliability, choose Glock OEM parts that have 40 years of proven excellence in dependability, performance, and safety!
 
 
Don't get swindled by sellers who swap out parts to poorly made clones and pass them off as Authentic OEM Glock® factory parts. The market is flooded with listings for OEM kits that contain counterfeit firing pins, fake extractors, and poorly made springs. These fraudulent parts are unbranded and unsafe. OEM Glock parts are required to pass rigorous manufacturer Quality Controls with extensive test firing and proper safety protocols. The failure rate in our build community using imitation parts is staggering. Read my full Blog post "Glock OEM vs. Knockoffs" to ensure you are buying genuine factory Glock® OEM parts. Don't get duped!!
 
This Authentic G23 UPK Gen 3 OEM kit guarantees unrivaled fit, function, and compatibility with Gen 3 Glock slides ensuring optimal performance from your Glock 23 firearm.
 
MGB Guarantee:
✔ Certified Glock Armorer Assembled – I personally assemble and inspect key components, ensuring first-time quality fit and function.
✔ Drop-In Ready – The firing pin assembly, firing pin safety with spring, and extractor depressor plunger assembly are fully assembled by me, so you receive parts that are ready to install with zero guesswork.
✔ FREE Shipping
✔ FREE Returns for ANY reason
✔ Ships within 24hrs Mon-Fri
 
All Parts in this Kit are factory OEM Glock® and include:
1. Firing Pin SP04270
2. Firing Pin Spring SP00063
3. Spring Cups SP00070
4. Spacer Sleeve SP00056
5. Extractor Depressor Plunger SP00112
6. Depressor Plunger Spring SP33522
7. LCI Bearing SP03439 (white)
8. Extractor SP01899
9. Firing Pin Safety w/ Spring SP00077
10. Recoil Spring Assembly SP02457
11. Channel Liner SP01148
12. Backplate SP00133
 
Glock 23 Upper Parts Kit OEM UPK Gen 1-3 G23 UPK by MGB 
 
Listing Disclosures & Policies:
1. USA Shipping Only - No International Sales
2. We will not ship to alternate names/addresses - Shipping is to buyer and address on their Credit Card account only
3. Slides, Frames, Blocks, Rails, or other items in pictures are for illustration only and not included with the OEM Upper Parts Kit.
 
 
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