Glock 45 vs 47 Size Comparison
The Glock 47 is 0.51 in (13 mm) longer, the same height and 0.01 in (0 mm) narrower than the Glock 45. With an empty magazine it weighs 2.83 oz (80 g) more. Both drawn to scale from Glock's published dimensions.
Glock 45 vs 47 side by side
Glock A
Glock B
Side profile
From behind
- Slide width
- 1 in1 in
- Same
- Overall width, with controls
- 1.35 in1.34 in
- Glock 47 is 0.01 in (0 mm) narrower
Tap the drawing to flip between the Glock 45, the Glock 47 and both.
Photos: Glock 17 Gen5 photo by Tony Webster, cut out by LeoPavouk (CC BY 2.0); Glock 43X photo by Kolomaznik (CC BY 4.0); Glock 17 Gen4 photo by Steve Dock, UK Ministry of Defence (OGL v1.0) Contains public sector information licensed under the Open Government Licence v1.0. Cut out and reshaped to each model's published size by GunPartPicker.
Plan your Glock in the Glock builder: slide, barrel, trigger and sights, each checked for fit. Open the Glock builder →
Quick answer
The Glock 47 is 0.51 in (13 mm) longer, the same height and 0.01 in (0 mm) narrower than the Glock 45. With an empty magazine it weighs 2.83 oz (80 g) more.
- Glock 45: 7.44 in long, 5.47 in tall, 1.35 in wide, 4.02 in barrel. Glock 47: 7.95 in long, 5.47 in tall, 1.34 in wide, 4.49 in barrel.
One square is one inch. Real Glock photos sized to Glock's published dimensions, checked September 27, 2026.
Is the Glock 45 or 47 bigger?
The Glock 47 is the bigger pistol. Against the Glock 45 it is 0.51 in (13 mm) longer and 0.01 in (0 mm) narrower.
Glock 45 vs 47 dimensions
| Dimension | Glock 45 | Glock 47 | B vs A |
|---|---|---|---|
| Overall length | 7.44 in189 mm | 7.95 in202 mm | +0.51 in13 mm |
| Slide length | 6.85 in174 mm | 7.32 in186 mm | +0.47 in12 mm |
| Barrel length | 4.02 in102 mm | 4.49 in114 mm | +0.47 in12 mm |
| Height with magazine | 5.47 in139 mm | 5.47 in139 mm | Same |
| Overall width, with controls | 1.35 in34 mm | 1.34 in34 mm | −0.01 in0 mm |
| Slide width | 1 in25 mm | 1 in25 mm | Same |
| Trigger reach | 2.68 in68 mm | 2.76 in70 mm | +0.08 in2 mm |
| Weight, empty magazine | 23.1 oz655 g | 25.93 oz735 g | +2.83 oz80 g |
| Capacity, standard magazine | 17 rounds | 17 rounds | Same |
| Caliber | 9mm | 9mm | Same |
| Glock catalog | Current model | Law enforcement catalog; retail stock still sells |
Glock 45 vs 47 grip length
The Glock 45 and Glock 47 are the same height with a magazine in, 5.47 in (139 mm). Trigger reach, from the back of the grip to the trigger, is 2.76 in on the Glock 47 against 2.68 in on the Glock 45.
Glock 45 vs 47 barrel and slide length
The Glock 47 barrel is 0.47 in (12 mm) longer: 4.49 in against 4.02 in. Its slide is 0.47 in (12 mm) longer (7.32 in against 6.85 in).
Will a Glock 47 fit a Glock 45 holster?
Only in an open bottom holster. The Glock 47 slide is 0.47 in (12 mm) longer, so it will not seat in a closed end Glock 45 holster. Holster makers mold for exact models, so check the maker's fit list before you buy.
Is the Glock 47 compact or subcompact?
Glock puts the Glock 47 in its full size class and the Glock 45 in its crossover class. Here is every current Glock at the same scale.
Subcompact slimline
Subcompact
Compact
Full size
Every card is to the same scale, lined up at the slide rear. Tap one to compare it or look at it alone.
Where can I buy a Glock 45 or 47 today?
Glock 45 in stock
In stock now. One listing per model family.
Glock 47 in stock
In stock now. One listing per model family.
More Glock 45 and 47 comparisons
Frequently Asked Questions
How much smaller is the Glock 45 than the Glock 47?
0.51 in (13 mm) shorter, 0 in (0 mm) lower and 0.01 in (0 mm) narrower, by Glock's published dimensions.
Which is lighter, the Glock 45 or the Glock 47?
The Glock 45, by 2.83 oz (80 g) with an empty magazine: 23.1 oz (655 g) against 25.93 oz (735 g) for the Glock 47.
Which holds more rounds, the Glock 45 or the Glock 47?
Neither: both ship with a 17 round standard magazine.
Where do these Glock 45 and Glock 47 numbers come from?
From Glock's own US spec pages, checked September 27, 2026. Both guns are shown at one scale, as real Glock photos reshaped to those numbers.
Cite this tool: GunPartPicker, “Glock 45 vs 47 Size Comparison”, https://gunpartpicker.net/tools/glock-size-comparison/glock-45-vs-47. Data from the GunPartPicker catalog and real community builds, prices checked November 11, 2026. Free to cite with attribution.
Read next
All guides →
More Gun Tools
- CompatibilityGlock Red Dot Fit CheckerPick how your Glock slide is cut and see which red dots mount directly, which need a plate, and the plates and optics in stock right now.
- LegalGun Travel CheckerCan I bring my gun to another state? Pick where you start, where you are going and what is coming along: carry pistol, AR-15, magazines, suppressor, SBR, brace, forced reset or binary trigger, hollow points. Every state on the route is checked for transporting firearms across state lines: magazine limits, assault weapon bans, NFA rules, carry permit type and trigger bans, with what to do before the state line.
- PlanningAR Build Cost CalculatorHow much does it cost to build an AR-15? Pick caliber, barrel length, stock or brace and optic, then drag both edges of the price band from the cheap end to the top end. Every slot fills with the part builders add most that is in stock, priced live. The headline total is the core rifle, optics and extras are priced separately, and beside them sits what builders really pay per slot, measured from real part picks. Roll a random build, or open yours in the builder in one click. Computed from over 1 million AR parts selected on GunPartPicker since 2020.
- CompatibilityMuzzle Thread CheckerPick your barrel's caliber and platform, get the standard thread pitch, and see every muzzle device and suppressor in the catalog that actually threads on, with live prices.
- CompatibilitySuppressor Mounts (3D)Put a can on its mount in 3D. Compare SilencerCo ASR, Dead Air KeyMo, SureFire Fast-Attach, HUXWRX QD, HUB 1.375x24 and direct thread: what goes on the barrel, what is on the can, how it locks and which cans fit which mounts. Cut it open to see the taper and the baffles, then shop the mounts and cans in stock.
- CompatibilityDI vs Piston (3D)Watch a direct impingement AR-15 and a gas piston HK416 fire in slow motion x-ray 3D. Follow the gas from the port back into the carrier, or into a piston that kicks an op rod, see which bolt runs hot, and compare weight, cleaning, suppressed use, carrier tilt and cost.
- CompatibilityUpper vs Lower Receiver (3D)Take a real AR-15 apart in 3D and see how the upper and lower receiver go together. Push the takedown pin, hinge the upper open on the pivot pin, pull the bolt carrier group and lift the upper off, with every part colored by the half it belongs to.
- CompatibilityHow Muzzle Devices Work (3D)Watch one shot leave an AR-15 muzzle in slow motion 3D through a bare barrel, a flash hider, a compensator, a muzzle brake and a linear comp. See where each sends the gas, and what that does to flash, recoil, muzzle rise and the blast beside you.
- CompatibilityHow a BCG Works (3D)Watch an AR-15 bolt carrier group unlock, extract and lock again in slow motion 3D, then take it apart part by part. See the cam pin turn the bolt out of the barrel extension, and what each part does.
- CompatibilityBuffer Tube and Stock (3D)See an AR-15 buffer tube, end plate, castle nut and stock go on in 3D, walk the stock through its six positions, and put a mil spec and a commercial tube side by side to see why a stock only fits one of them.
- CompatibilityHow a Charging Handle Works (3D)Watch an AR-15 charging handle unlatch and pull the bolt carrier back by its gas key in 3D, then watch the rifle fire while the handle stays put. Compare a standard latch with an ambidextrous one.
- CompatibilityHow the Gas System Works (3D)Watch a shot's gas go up an AR-15's gas port, through the gas block and back down the gas tube to the bolt carrier in slow motion 3D. Turn it down with an adjustable gas block, and see where the port sits on pistol, carbine, mid length and rifle gas.
- CompatibilityFree Float vs Drop In Handguard (3D)Watch an AR-15 free float handguard go on its barrel nut in 3D, lean on a free float and a drop in handguard to see which one moves the barrel, and lock an M-LOK rail section in. Plus M-LOK vs KeyMod and what length fits your barrel.
- CompatibilityHow Triggers Work (3D)Watch a standard trigger, a forced reset trigger and a binary trigger run inside an x-ray AR-15 in slow motion 3D. See the hammer, the disconnector, the FRT's locking bar and the bolt carrier at every step, and what each one needs and where it is legal.
- CompatibilityFRT and Binary Trigger PickerChoose your platform and see every forced reset trigger, binary trigger and Super Safety the catalog carries for it, what the host needs to run one, and where each is in stock.
- CompatibilityP385 Size ComparisonSee the SIG P385 CARRY, COMP and FULL to scale against the P365-XMACRO, the P320 and the Glock 19, 17, 45 and 43X, as real photos sized to the published length and height, with every dimension and where to order one.
- Paint plannerGun Paint PlannerRattle can guns online before you spray. Paint, stencil and camo a real photo of about 1,800 guns: AR-15s, AR-10s, AR-9s, AKs, every Glock, pistols, shotguns and bolt action rifles, the way the rattlecanned guns on r/rattlecannedguns are done, with Krylon, Rust-Oleum, Aluma-Hyde, DuraCoat and Cerakote colors, then get the cans to buy in spray order.
- TuningTwist Rate CalculatorPick a bullet and a twist rate, get the Miller stability factor, then see barrels with that twist and ammo loaded with that bullet, with today's price per round.
- TuningOptic Zero (3D)See where a 25, 36, 50, 100 or 200 yard zero hits on a 3D range, with your ammo, barrel length and optic height. Compare two zeros side by side, look through your red dot, EOTech or LPVO at each distance, then tap where your group hit and get the exact clicks up, down, left and right for your optic.
- TuningBuffer Weight CalculatorEnter your gas system, barrel length, buffer tube and ammo, add a suppressor or a fast trigger, and get the buffer weight to start with plus the buffers in stock that match.
- TuningBuffer System (3D)Watch an AR-15 cycle in slow motion, cut open: gas drives the bolt carrier back, the bolt unlocks and throws the brass, the buffer and spring soak it up and send it home. Swap carbine, H, H2 and H3 buffers, add gas or a suppressor, and see the carrier speed, where the brass lands and when it short strokes.
- LegalBarrel and Overall Length CheckerEnter barrel length, muzzle device and how the back end is configured, and see whether the build is a rifle, a short barreled rifle, a pistol or an AOW under federal law, with the barrels in stock at that length.
- LegalSBR Planner (3D)Set the barrel anywhere from 7.5 to 16 inches, put a stock, a brace or a folder on the back, pin a muzzle device or slide on a can. The ruler under the rifle shows whether you've cleared the 16 inch barrel line and the 26 inch overall line. Pick your state for its SBR, suppressor and assault weapon rules, then price every part and open the build in one click.
- PlanningNight VisionLook around a real 360 degree scene through Gen 1, Gen 2+, Gen 3 green and white phosphor tubes, digital night vision and thermal. Turn the moon down from full to overcast, switch on an IR light, compare two devices side by side. Or walk a 3D farm at night and spot the people, hogs and deer hiding in it. Then see the PVS-14, PVS-31, GPNVG-18 and the thermal scopes people buy, with prices.