Buying your second gel blaster: what to change and what to keep

Somewhere around the first year the itch turns up. You know what annoys you about your first blaster, you have watched someone else's run all day without a hiccup, and you start browsing. Then the second one arrives, you drop your mag in, and it falls straight back out.

I have done the expensive version of this. Early on I bought a pile of parts from an online store before I knew what the blaster needed, and most of that was wasted money. The second blaster is where that mistake gets bigger, because by then you own real kit worth keeping.

What actually carries over

Four things decide whether your gear follows you across. Check all four before you commit.

Mags. This is the one that bites. "M4 mag" is not a specification, it is a shape. I bought mags from a Southport shop sold to me as made for my HK416D, and they would not feed and fell out of the magwell. I got a refund in the end. Later I bought five mags with springs from the tech who built my MK18, and those fit both rifles perfectly. Put your own mag in the blaster before money changes hands, and see why "fits" isn't enough.

Battery and connector. Everything I run is 11.1V LiPo, charged in a LiPo-safe bag, and all five packs I carry plug into either rifle. A different connector means an adaptor in the line or a soldering iron. Match the pack and the plug, or budget for the rewire. The battery guide covers what to look for.

Gel size. I double-sort my gel to land between 7.20 and 7.25 mm for a 7.3 mm barrel. If the second blaster runs a different bore, the batch you prepped for Saturday is the wrong batch. Ask what barrel is in it, because gel and barrel have to be matched.

Rails and furniture. Both my rifles run Picatinny quad rails and a holo sight each, so the optic is a straight swap. Stocks and grips are less portable than people assume: what actually transfers.

This is most of why I have never owned an AK. All my rifles are M4-pattern, and honestly the reason is just that it feels right in my hands. The payoff showed up later: when I added a Noveske N4, about $1,200 all-in once a tech had been through it, it ran the same mags and batteries as my MK18. A straight swap, nothing bought twice. If you are weighing the platform itself, that gets its own post.

What to change, and why

Your first one is unreliable. Then you are buying reliability, not features. My first rifle was an HK416D and the gearbox came apart on the third outing, a high-pitched whine and then no shot. A tech rebuilt it. Learn to read what grinding, clicking or silence is telling you first, because a rebuild is often less than a replacement.

You want a different job done. A rifle and a sidearm are not the same purchase. I move to a Glock in close quarters when the rifle runs dry, and that is a genuine second blaster rather than an upgrade.

You want the better build. The honest one for most people. Metal body, better internals, a gearbox that survives. Just know a metal body is not a metal gearbox, and run whatever you pick through the inspection checklist.

🟣 Your old kit is the slowest thing you own to sell

What the next step up costs

Bands from RedSpear's rifle listings on 4 November 2026, not a market survey. Treat them as the shape of the steps, not a quote.

$250 to $350. The realistic second-blaster band, and where most people should look. Full metal M4 and HK416 bodies, often with a torch or optic fitted.

$500 to $950. Upgraded builds with the internals sorted. You are buying the labour as much as the parts, which is good value when the work is documented.

$1,000 and up. Gas blowback, custom DSG and bolt-action. Specialist buys. The pricing guide covers valuing what you own before you trade up.

One pattern before you choose. Of the ten used rifles and bundles sold through RedSpear, seven were M4-pattern, and the two clearly non-M4 rifles were the slowest sales in the set at 74 and 91 days. Small sample, and I would not build a rule on it, but it points the same way as the mag and battery logic.

Frequently asked questions

Should I sell my first gel blaster before buying a second?

Usually no. Keep it until the second one has had a full game day without a problem. A spare that takes the same mags and batteries is useful insurance, and if the new one disappoints you still have something to play.

How many mags and batteries do I need for two blasters?

I carry four to five mid-cap mags, five batteries and one pack of gel for a game day, and that covers the rifle, the sidearm and spares. If both take the same mags and packs, two need barely more kit than one.

Is it better to upgrade my first blaster instead?

Often, and it is usually less money. The order you upgrade in matters more than the parts you pick, which is what the upgrade guide is for. Buy a second blaster when you want a second blaster, not to fix the first one.

Sources

• RedSpear Armory sales data, sold 24 July to 20 October 2026: 15 complete blasters and bundles, median 14 days from listing to sale; 5 loose accessory and magazine listings, median 88 days.
• RedSpear Armory live rifle listings, checked 4 November 2026, for the price bands above.

Last checked: 4 November 2026. Prices and stock move week to week, so check the listing before you budget.

RedSpear Armory — Queensland's dedicated marketplace for used gel blasters. Browse listings, sell your gear, and connect with the local QLD community at redspeararmory.com.au.