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Firearm Size Comparison Guide
Mar
Firearm Size Comparison Guide
When a Ruger LCP II (.380 ACP) disappears in your pocket but a Desert Eagle (.50 AE) demands a chest rig, size directly impacts function. Let’s break down real-world dimensions across concealed carry, duty, and long-range firearms.
Pocket Pistols vs. Subcompacts
The 5.3″ long Ruger LCP Max (.380 ACP) weighs just 10.6 oz empty, while the Glock 43X (9mm) stretches to 6.5″ and 18.7 oz. That extra inch and 8 oz matter when appendix carrying all day. True pocket pistols like the Kel-Tec P-32 (.32 ACP) measure under 5″ overall, but sacrifice ballistic performance. Subcompacts strike a balance – the SIG P365 (9mm) packs 10+1 rounds in a 5.8″ frame with 1″ width.
Full-Size Duty Handguns
Compare the Glock 17 (9mm) at 8.03″ overall length to the 1911 Government model (.45 ACP) at 8.5″. While similar in length, the 1911’s single-stack design keeps width to 1.28″ versus the Glock’s 1.34″. Weight differs drastically: 25 oz for polymer-framed Glock vs. 38 oz for steel 1911s. Duty guns like the FN 509 Tactical (9mm) add threaded barrels, pushing length to 8.2″.
Rifle Barrel Length Tradeoffs
A 10.5″ AR pistol in 5.56 loses ~200 fps velocity versus a 16″ carbine, while a 20″ rifle gains another 150 fps. The 7.5″ SIG MPX-K (9mm) stays maneuverable indoors but a 16″ PCC like the Ruger PC Carbine maintains subsonic ammo stability. For precision, 24-26″ barrels dominate in 6.5 Creedmoor chassis rifles.
Shotgun Size Considerations
Mossberg’s 18.5″ 590 Shockwave (12ga) measures just 26.37″ overall but kicks brutally. The 28″ barreled Beretta A400 Xtreme Plus handles 3.5″ shells but stretches to 50.5″ – fine for duck blinds, not home defense. Compromise exists in 20″ tactical models like the Benelli M4 with collapsible stock.
What’s the smallest reliable 9mm pistol?
The 5.2″ long Springfield Armory Hellcat (9mm) holds 11+1 rounds in a package thinner than most smartphones. For ultimate concealment, the 4.8″ Kahr CM9 sacrifices capacity (6+1) but disappears in ankle holsters.
Does barrel length affect accuracy?
Velocity matters more than inherent precision – a quality 10.3″ Daniel Defense AR barrel will outshoot a cheap 20″ one. However, longer sight radius on irons and reduced muzzle blast aid practical accuracy.
How big is too big for concealed carry?
Most shooters struggle to conceal anything over 7″ long and 1.4″ thick without printing. The Glock 19 (7.28″ long) represents the upper limit for most appendix carry setups before needing oversized clothing.
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Last updated: April 28, 2026
