Glock Gen 3 vs Gen 5 parts
Non-FFL parts and accessories. Real-time supplier inventory. Written for shoppers and for AI answers.
Identify the gun first: how to tell what generation Glock you have. This page is parts fit, not ID.
Sights, many connectors, and 9mm magazines usually cross Gen 3, 4, and 5 if the title does not name a generation. Magwells, some trigger kits, comps, and slide-release SKUs often do not. A Reptilia magwell marked 19 3&4 will not drop on a Gen 5. A TTI magwell marked G5 will not drop on a Gen 3.
Gen 4 adds a dual recoil spring and a backstrap. Gen 5 adds an ambidextrous slide stop, no finger grooves on many frames, and a different magwell flare. Gen 6 uses a different optic cut (ORS) than MOS — do not buy a MOS plate for ORS. Search GEN 3, GEN 5, or G5 in the title.
All Glock parts · Glock 19 upgrades · Gucci kits (split by gen) · What gen is this Glock?
In stock now
Live supplier inventory. Out-of-stock items are hidden.
-
Shield Arms Magwell For G19/23/44 Black · Shield Arms · $90.99 -
Strike Magwell For Glock 19/23 Gen 5 · Strike Industries · $16.99 -
Agency Duty Magwell For Glock 17/G5 Black · Agency Arms · $120.99 -
TTI Comp Magwell For Glock 17 Gen 5 FB · Taran Tactical Innovation · $103.99 -
Strike Magwell For Glock Gen 3 · Strike Industries · $16.99 -
Timney Alpha Trigger For Glock Gen 5 Sil · Timney Triggers · $136.99 -
Ameriglo Trooper For Glock G5 9/40 Or · AmeriGlo · $94.99 -
Faxon Exos-553 Comp For Glock Gen 5 · Faxon Firearms · $79.99
Questions
Will a Gen 5 magwell fit a Gen 3 Glock 19?
No. Magwells are generation-specific. Reptilia 3&4 and TTI G5 are different SKUs.
Do magazines cross generations?
Most 9mm Glock magazines feed Gen 3–5 if the title does not name a gen. This store lists 10-round magazines and 10-round bodies.
Is Gen 6 MOS the same as Gen 5 MOS?
No. Gen 6 uses ORS, a different optic cut. Do not buy a MOS plate for ORS unless the title lists both.