Glock G27 Gen5 .40 S&W
Model: PA275S201
Glock G27 Gen5 .40 S&W
Model: PA275S201
Full Specifications
About This Firearm
The G27 Gen5 is a subcompact .40 S&W — 6.42" overall, 23.85 oz, with a 3.43" barrel and 9+1 capacity. .40 S&W is in commercial decline; the FBI's 2014 return to 9mm pulled most agencies along, and the ammunition selection and new-pistol support have contracted steadily since. The G27 exists because people who are already in the .40 ecosystem need a subcompact option — and for that purpose, it's the right tool. At 1.30" wide and 4.21" tall, it's genuinely pocketable by full-caliber standards. The trade-off is recoil. Forum threads consistently indicate the G27 in .40 S&W is noticeably harder to shoot well than the G26 in 9mm — same size, same weight class, but .40 S&W's sharper impulse in a subcompact produces muzzle flip that takes more work to manage. That's not a reason to avoid the G27, but it's the honest starting point for the decision.
The practical case for the G27 is flexibility. It accepts G23 13-round and G22 15-round magazines, which protrude below the grip but function reliably. That means a G27 owner can carry the 9+1 subcompact daily and drop a 15-round G22 mag in as a spare — no extra expense for dedicated extended magazines. For buyers already in the G22/G23 ecosystem, this is a real advantage. For buyers starting fresh, the 9mm G26 is worth a look: similar dimensions, lighter recoil, and broader ammunition availability. If you're buying .40, the G27 is the right subcompact for it.
Best For
Strengths & Limitations
- Accepts G22 (15-round) and G23 (13-round) magazines for range use or as a spare carry mag. No need to buy extended subcompact magazines if you already own the siblings.
- At 1.30" wide and 4.21" tall, it's one of the most concealable full-power .40 S&W pistols available.
- Owners consistently report the G27 in .40 S&W is harder to shoot accurately than the G26 in 9mm. The 23.85 oz subcompact frame doesn't absorb the cartridge's recoil as well as the heavier G22 or G23. Getting back on target quickly takes more practice.
- 9+1 capacity with the flush magazine. The G26 in 9mm carries 10+1 in roughly the same dimensions.
Ballistics Calculator
Calculate trajectory, drop, and energy for .40 S&W ammunition.
.40 S&W Ballistics →Where to Buy
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Frequently Asked Questions
What magazines fit the G27, and do larger ones work reliably?
The G27 ships with 9-round flush-fit magazines. It also accepts G23 13-round and G22 15-round magazines — both protrude below the grip but feed and function reliably. This is well-documented across the owner community. The extended mags don't add length to the slide or barrel, so they don't affect concealability of the gun itself, only the grip depth. Many G27 owners carry a G22 15-round magazine as their reload, which effectively doubles their available capacity without buying any G27-specific extended mags.
Is the G27 practical as a primary carry gun, or is it better as a backup?
It works as either, but the recoil management question is real. Owners who shoot the G27 regularly report it takes more deliberate practice to shoot fast and accurately than the G23 or G26 9mm. As a primary carry gun, the 9+1 flush capacity is tight — pair it with a G22 magazine as a spare and you're carrying 9+1 plus 15, which is a practical setup. As a backup to a G22 primary, the ammunition and magazine compatibility makes it the logical choice in the .40 S&W family.
