AEA Megalodon 22 — Pump Action Big Bore PCP Air Rifle

AEA Megalodon Review — The Ultimate Big Bore PCP

The AEA Megalodon is a pump action big bore PCP air rifle that represents the pinnacle of AEA’s engineering. Available in .357, .457, .50, .510, and .58 calibre, this rifle delivers massive power for large game hunting and long-range shooting . The 22-inch barrel version produces up to 585 foot-pounds of muzzle energy in .58 calibre, with .50 calibre delivering up to 435 FPE at 939 fps . The dual air tank system gives you a total of 500cc (15-inch barrel) or 600cc (22-inch barrel) of air capacity . For UK shooters, sub-12 ft/lb versions are available for certificate-free ownership .

AEA Megalodon UK — Technical Specifications

The Megalodon features a smooth pump action mechanism and an 8-shot rotary magazine (.50 cal) . The maximum fill pressure is 4500 PSI (310 bar) . The 15-inch barrel version weighs 7.9 lbs with a 31-inch overall length, while the 22-inch barrel version weighs 8.6 lbs and measures 38 inches . The rifle comes with a full-length Picatinny rail on top for optics and additional rails on the sides and bottom for accessories . The pump action is faster and more reliable than semi-auto systems, making the Megalodon ideal for hunting scenarios where quick follow-up shots matter .

AEA Megalodon Calibre Options and Performance

The .357 calibre produces up to 192 FPE with a 120gr slug at 866 fps from the 22-inch barrel . The .457 calibre delivers up to 391 FPE with a 225gr slug at 895 fps . The .50 calibre produces up to 435 FPE with a 230gr slug at 939 fps . The .58 calibre is the most powerful, delivering up to 585 FPE with a 450gr slug at 775 fps . The .510 calibre is also available, producing up to 470 FPE with a 250gr slug at 930 fps . Owners report that the Megalodon is accurate enough for deer hunting at 75 yards, with groups described as 50 cent piece sized with all holes touching .

AEA Megalodon Problems — Honest Owner Feedback

The Megalodon has several known issues worth discussing. The magazines are made of cheap plastic or polymer, and one owner doubted they would hold up in rough field conditions . There is no magazine lockout, meaning dry firing is common — owners must count their shots carefully to avoid damaging the valve pin . The early batches suffered from underpowered shots because the bolt handle rubbed against the receiver; later models fixed this issue . Some owners have reported minor leaks from the rear tank area, usually just a faulty O-ring that the retailer replaced . The rifle is extremely loud without a moderator — one owner described it as sounding like a firearm with echo . For .50 cal owners, use .495 calibre slugs only, not .510, as the larger slugs can get stuck in the barrel or damage the breech O-ring .

AEA Megalodon Accuracy and Performance — What Owners Say

Owner feedback on the Megalodon is overwhelmingly positive despite the minor issues. One owner stated that if there is any AEA airgun worth the money, it is the Megalodon . Another owner, who owns FX rifles and other high-end PCPs, ranked the Megalodon at the top, stating he did not regret putting the money into this one . The .58 calibre owner described it as like a cannon, so powerful that it gives you that feeling in your gut that goes holy poop this is badass . Owners report that the rifle is extremely accurate without a moderator, achieving same-hole groups at 75 yards, but caution that moderators must be rated for the Megalodon’s power — the DonnyFL Ronin can collapse under the muzzle blast, while the Emperor is designed for big bore power .

AEA Megalodon For Sale UK — In Stock at Fieldcraft Airguns

Fieldcraft Airguns has the AEA Megalodon in stock now. We offer .357, .457, .50, .510, and .58 calibre versions with both 15-inch and 22-inch barrel options. The UK legal sub-12 ft/lb versions are available for certificate-free ownership. The MK2 F-Series model in .50 calibre features a 12-shot magazine and is available to order . Every AEA Megalodon sold by Fieldcraft Airguns comes with our exclusive 12 month warranty and delivery straight to your door. We recommend adding a high-pressure compressor capable of 4500 PSI (310 bar) fills to your order — standard stirrup pumps are not suitable for this pressure. Also add a supply of correctly sized slugs (.495 for .50 cal) and a scope rated for heavy recoil. For owners wanting a moderator, we recommend the DonnyFL Emperor over the Ronin, as the Emperor is specifically designed for big bore power levels .