🔥 UPGRADING My VFC KS-1 — Crazy Jet Barrel = BIG FPS Boost?! 🔥

Описание: In today’s video I’m upgrading my VFC KS-1 with a Maple Leaf Crazy Jet inner barrel (290mm) and a 4UAD Quantum hop-up bucking, the exact same combo I’ve just installed in my PROW XM5 — but this time the install is even easier.

This is a full tech install + FPS test + first impressions video where I swap the stock barrel and hop unit for higher-end components to see what kind of performance jump the KS-1 can get.

🔧 What I Do in This Video:
• Remove the KS-1’s hop unit & inner barrel
• Install the Maple Leaf Crazy Jet 290mm (slightly short — I recommend ~320mm for perfect fit)
• Install the 4UAD Quantum hop rubber
• Reassemble the rifle (very easy on the KS-1)
• Chronograph test w/ 0.25g BBs
• Discuss results & whether I recommend this upgrade

💥 RESULTS

The new barrel + bucking combo boosted performance massively:
• 370–380 FPS on 0.25g BBs (≈1.45J)
• Very tight consistency
• Noticeably better accuracy and air seal

I’ll need to tune it down slightly for indoor games, but as an upgrade combo, this thing WORKS.

If you’re looking to squeeze more accuracy and power out of your KS-1, this is definitely a solid mod.

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🛒 PARTS USED (WITH REFERRAL LINKS)

👉 Maple Leaf Crazy Jet Inner Barrel (choose your length)
https://www.evike.com/products/113268...

👉 4UAD Quantum Hop-Up Bucking
https://www.evike.com/products/84794/...

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⚠️ DISCLAIMER

NO REAL FIREARMS ARE SHOWN — ONLY AIRSOFT TOYS.

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