945 Industries Bag Size: How to Choose the Right Fit

If you're trying to figure out how to choose 945 Industries bag size for your pistol, you're not alone — picking the wrong size is the #1 mistake first-time buyers make.

The lineup spans five different products, and they're not interchangeable. Get the size wrong and you'll either feel like you're carrying too much bag, or not enough capacity for your gun.

This guide walks through the decision step by step: pistol size, holster type, and material, in the order that actually matters.

Step 1: Know Your Pistol's Size Category

Before picking a bag, know which category your pistol falls into:

• Subcompact — small carry pistols, the smallest category in the lineup
• Compact — mid-size pistols, the most common everyday-carry category
• Full-size — larger duty-style or range-focused pistols

This single decision drives almost everything else in this guide, so it's worth getting right before you look at specific models.

If you're not sure which category your pistol falls into, check the manufacturer's spec sheet for barrel length and overall size — most gun makers classify their own lineup into these same three tiers, which makes cross-referencing against 945's sizing straightforward.

Step 2: Match Pistol to Bag Line

QAPS is built for subcompact pistols. If your everyday carry gun is genuinely small, this is the entry point — lowest price in the lineup, sized specifically for that category without paying for capacity you won't use. Full breakdown: QAPS review.

QAPL covers compact and select full-size pistols — it's the bestselling bag in the entire catalog, and the safest first purchase if your pistol falls in this middle range. According to third-party gear reviews, a Glock 19 fits comfortably in the QAPL, which gives a useful real-world reference point if you're carrying something similarly sized. Details: QAPL review.

QAPX is the largest fixed-size option, built for full-size pistols plus a spare magazine. If QAPL feels tight for your gun, or you specifically want room for extra ammunition alongside it, QAPX is the next step up.

MORPH breaks the fixed-size pattern entirely — it expands from 2.5″ to 3.5″, which makes it the right call if you're running a red dot, a weapon light, or extra gear and don't want to commit to a permanently larger bag for accessories you might add later. Full details: MORPH review.

Step 3: Decide on Holster Type

Once you know your size, you'll choose between an integrated Kydex holster (molded to your exact firearm, tightest retention) or an IWB adapter (lets you reuse a holster you already own, lower price).

This decision is independent of bag size — you can pick either holster type on most models, and switching between them later doesn't usually mean buying a whole new bag. Full breakdown: Kydex vs IWB comparison.

Step 4: Pick Your Material

Most bags ship in Cordura 500D (the proven standard) or UltraGrid (recycled nylon, more color options). Material choice doesn't affect sizing or holster compatibility — it's purely about durability preference and color, so it's the last decision to make rather than something that should influence which size you pick. Full comparison: Cordura vs UltraGrid.

Quick Reference Table

If your carry needs change over time — a different pistol, an added optic, more gear — the modular SUMMIT review covers the most flexible option in the catalog, built specifically for that kind of evolving setup.

Still Not Sure?

When in doubt, size up rather than down. A bag that's slightly larger than strictly necessary is a minor inconvenience; a bag that's genuinely too small for your pistol won't work at all, and forcing a fit defeats the entire purpose of a tailored holster system.

If your needs are likely to change — a different pistol down the road, an added optic, more gear over time — it's worth weighing that against the cost of buying twice. Sometimes the better long-term value is starting with a slightly larger or more flexible option now, rather than the cheapest fit for your current setup.

For the complete brand picture — every model, current pricing, and how 945 Industries compares to other brands — see our full 945 Industries review. Now you know exactly how to choose 945 Industries bag size before you order.