Glock 39 for sale
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Glock G39 Refurb 45Gap 3.4" 6Rd PR39509 764503395093
Brand:
Glock
Barrel Length:
3.5"
Caliber:
.45 GAP
Capacity:
6
Marketplace Insights
★ 5.0/5
based on 5 customer reviews across 2 variants from 24 retailers
Customers consistently praise this compact .45 ACP pistol for its power, concealability, and accuracy, though ammo availability is a noted concern.
What customers like
Ammo/Reloading60%
I Handload all my ammo so with a couple of boxes I can shoot a bunch
Power & Concealability60%
Has some power and very concealable
Accurate & Well Built40%
Very accurate as well
.45 ACP Performance40%
You get the power of a .45 ACP with the same dimensions as a Glock 22
Common concerns
Ammo Availability40%
Ammo is a bit hard to find
Frequently Asked Questions
Glock 39 for sale
What caliber is a Glock 39?
The Glock 39 is chambered in .45 GAP (Glock Auto Pistol), a cartridge designed to deliver .45 ACP performance in a shorter case. This subcompact pistol has a standard 6-round capacity and weighs 22.22 ounces unloaded.
Can a Glock 39 shoot 45 ACP?
No. The Glock 39 is chambered exclusively in .45 GAP, not .45 ACP. While GAP delivers comparable ballistics to ACP in a shorter case, the two cartridges are not interchangeable. Firing ACP rounds in a GAP chamber risks dangerous pressure spikes and firearm damage.
What is the difference between .45 GAP and .45 ACP?
.45 GAP uses a shorter 0.755-inch case versus .45 ACP's 0.898-inch case. GAP operates at higher pressure to match ACP's power in compact pistols. The cartridges aren't interchangeable—each requires its own chambered handgun. GAP ammunition is harder to find and typically costs more than ACP.
What are the pros and cons of the Glock 39?
Pros: Excellent concealability in subcompact form, .45 GAP delivers .45 ACP-level power, manageable recoil for its size, 6-round capacity. Cons: .45 GAP ammo is scarce and expensive compared to 9mm or .45 ACP, limited aftermarket support, and the niche caliber means fewer shooters are familiar with it.
Is the Glock 39 still in production?
No, Glock discontinued the G39 subcompact pistol. The .45 GAP caliber lost favor with law enforcement and consumers, leading Glock to streamline its lineup. Used G39s remain available through secondary markets, but no new production occurs.
What Glock models are in the 45 GAP?
Glock made three models in .45 GAP: the G37 (standard frame, 10-round capacity), G38 (compact, 8-round), and G39 (subcompact, 6-round). All three have been discontinued but used examples remain available through secondary markets and some retailers.
Is the Glock 39 double stack?
No, the Glock 39 is a single-stack pistol. It holds 6 rounds of .45 GAP ammunition in a single-column magazine, which keeps the grip slim. This makes it suitable for concealed carry despite chambering a relatively large cartridge.
Is there a Glock 39?
Yes, Glock makes the G39—a subcompact semi-automatic pistol chambered in .45 GAP. It remains an active product in Glock's current lineup. Our marketplace lists 2 variants across 24 retailers, typically priced around $516, with most listings between $437–$603.