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Reader Survey >Rainson Edge-X Review: A Feature-Rich Bullpup PCP
- Last updated: 13/08/2025
For those unfamiliar with the Rainson brand of PCP airguns, they hail from Turkey, and with Anglo Spanish Imports (ASI) as their UK distributor, their route to market is much improved.
On test here is the Rainson Edge, and there is a choice of three stocks with this one. There’s the Edge-C, denoting a moulded camo stock; the Edge-W, for walnut; and the Rainson Edge-X (on test), which is the black synthetic version. Just to confuse matters, my test rifle came with the synthetic stock, yet it came supplied with an action badged up as ‘Edge-C’. This was purely an oversight from ASI while testing the action, I understand, so we’ll let them off this time.
Open the protective polystyrene box and, alongside the gun itself, you’ll find spare seals, tools, a special extended filler adaptor, a single-shot tray, three magazines, a silencer, and an instruction leaflet. That’s a pretty comprehensive package.
Pick up the Rainson Edge-X, and everything looks sturdy and robust. I love the satin-look barrel, which matches up with the chunky regulator components on the action. This model is best described as a semi-bullpup configuration, since the action is set well back in the stock, but still forward of the cheekpiece. This makes life a little more civilised where sighting arrangements are concerned, yet it keeps with the ultra-compact, tactical credentials.
No fewer than three additional accessory rails feature, so there are plenty of options for all manner of tactical add-ons. Indeed, consider the features on offer with this Edge-X, then look at that RRP, and it seems like a lot of gun for our hard-earned readies! There’s a regulated, side-lever action, an adjustable stock, and a host of other goodies to mull over.
Where the polymer/synthetic stock is concerned, I love the configuration. Many buddy-bottle-fed rifles leave us handling a cold bottle, as it doubles up as the fore-end, and this always feels a bit crude to me. In the case of the Edge-X, the shape of the moulded fore-end is supreme. Couple that with the superbly contoured and rubber-coated pistol grip (complete with palm shelf), and we have superior handling.
The well-shaped butt pad is made from soft rubber, and it is adjustable for length of pull. Tweak this, along with the polymer cheekpiece, and a decent, supportive position can be arrived at. Both are controlled by their respective finger wheels on the right side of the butt, so no fiddly tools are required here. M-LOK slots are part of the moulded fore-end, and there’s even a sizable quick-release sling swivel fixed at the rear, which demonstrates attention to detail.
Rainson states that the maximum fill pressure is 250bar for the Edge-X, but given the sizeable 425cc bottle, I would stick to 200bar, and you’ll still have an abundance of shots. Filling is via the recessed Foster-style adaptor, just forward of the trigger, and this comes protected with a small rubber cap. The supplied brass filling adaptor has an extended body, which is recommended as it makes the job somewhat easier.
The Rainson magazine comes in lairy, eye-catching red and is filled by twisting the cover anti-clockwise against spring pressure. Drop a pellet into the open chamber, then, using a finger to prevent the pellet from falling through, twist the cover back clockwise, filling each chamber until full. My test gun, in .22 calibre, features a 12-shot version, otherwise, it’s 14 shots in .177 and 10 in .25. A nice touch is the magazine storage point, recessed up into the base of the butt for quick backup shots.
The Picatinny scope rail seem overkill to me on an airgun with zero recoil. However, the upside is that this style of mount invariably comes with side-wheel tensioners, which can normally be set hand-tight, meaning they can be removed quickly without tools, making scope changes easy and stress-free. For my test session, I had an MTC Copperhead 3-12x44 F2 scope bolted into place, and for such a diminutive optic, it’s surprisingly weighty. Added to the Rainson’s semi-bullpup configuration, the whole rig had a ‘planted’ feel to it for sure. The Rainson Edge-X weighs 8.4lbs, but it’s the rearward shift of weight into the shoulder that really defines the handling. I prefer more weight towards the front, though I’m sure a legion of bullpup enthusiasts would disagree.
On that very point of front weight, let’s remind ourselves that this Rainson comes with a chunky silencer in the box. I love the visuals of the super-slimline shroud, and it’s worth noting that the barrel actually runs right through to the muzzle, so there is no expansion chamber here. Just remove the cap from the ½” UNF thread up front, and the fluted brute of a silencer can be spun into position. It’s a full 10oz, so the balance will be altered for sure. It possibly defeats the object of such a compact rifle, but it’s great to have it as an option in my book.
The user manual that comes with the Edge-X makes no mention of trigger adjustment, and no screws are visible. That said, there is a neat, adjustable trigger shoe that can be set both for height and offset angle.
OK, I think we’re ready to rumble. I love the shape of the biathlon-style drop-down side-lever, and once released, it flicks back to start the process. It does move in quite a wide arc, and the feel of the mechanism is a bit vague.
With the lever fully cocked and the bolt retracted, at this point we can opt to shoot single shot (in which case the plastic ‘Single Shot Assistant’ (loading tray) can be snapped into the breech), or a full magazine can be inserted, coming in from the right side. Close the lever, and we’re good for 12 shots. There is a manual safety catch at the rear of the block too, for anyone feeling the need.
Keeping tabs on pressure is easy, given the twin manometers mounted on the right side of the action. The one on the bottle shows the main residual pressure, while the other relays regulator pressure.
Rainson fit a power adjuster to all their models, and this welcome feature sits on the left side of the breech. I dialled it down to the lowest setting just to get an idea, and this produced energy in the region of 7ft/lbs, for the record. The trigger is again a bit vague, but light enough, and the blade saves the day. Dialling back up to full power, and using RWS Superfield pellets, I clocked the first 100 shots, returning a total velocity spread of 35fps and an average of 10.2ft/lbs. OK, not mind-blowing figures, but usable consistency nonetheless, from pellets taken straight from the tin. Residual pressure was 160bar, and from my 200bar fill, that shows we should get around 200 shots, given the reg pressure was set to around 100bar.
At this stage, it’s worth remembering, as mentioned, that the action can take 250bar, raising the shot count considerably, and there’s also an option of a 500cc bottle, too. Decisions… decisions! In terms of accuracy, and the preferred diet of Superfields, 30 yard groups were just a little over ¼” c-t-c, whilst moving back to 38 yards, the best results measured around ¾”. So, respectable for sure.
I really enjoyed my time with this Rainson Edge-X, and whilst it may not be the most sophisticated rifle out there, it has bags of appeal and some really well-thought-out features. The stock is a triumph, and just feels natural and comfortable in the aim, and given the hoard of goodies that come included, it has to be a big thumbs up, for a general-purpose PCP with plenty of character.
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