Product Description

FX DRS MKII Tactical Standard AR15 Air Rifle– A Proper British Look at FX’s New PCP

Right then. If you’ve been keeping an eye on the airgun scene, you’ll have noticed FX have been busy again. The DRS platform caused a fair stir when it landed – that clever integrated reservoir wrapped around the barrel, doing away with the big bottle underneath. Now we’ve got the MKII Tactical Standard, and it’s a bit of a beast.

Let me walk you through what’s actually going on here, without all the usual marketing flannel.

What’s Different About This One?

First thing you’ll notice – it’s tactical. Properly tactical. Gone is the traditional stock, replaced with an aluminium chassis and an AR-style adjustable buttstock on a Mil-Spec buffer tube. But here’s the clever bit: they’ve kept that ultra-slim profile because the air’s still stored around the barrel, not in a great lump hanging underneath.

So you get the adjustability of a tactical rig without the rifle feeling like you’re carrying a scaffolding pole.

That Integrated Air Reservoir – Why It Matters

The DRS stands for “Dual Reservoir System” – there’s 260cc of air wrapped around the barrel shroud. No bottle hanging out front, no cylinder underneath. That means the rifle sits lower, balances better, and doesn’t catch on every branch or door frame you walk through.

For a day in the field, that matters. You’re not wrestling the gun; it just carries nicely.

The Bits You Can Actually Adjust

MKII AMP Regulator

This one’s external. No stripping the rifle down to change pressure. You want to switch from pellets to slugs? Just tweak it. The AMP regs have been around long enough now that they’ve proven themselves – consistent shot strings, no creeping between sessions.

Hammer Spring

You’ll need to take the stock off to get at it, which is a minor faff, but once you’re in there you can dial the preload up or down. More preload = valve stays open longer = more air down the barrel. Less preload = tighter on air, more shots per fill.

34cc Plenum

Bigger plenum means the valve’s got a decent reservoir of regulated air to draw from. Helps with consistency and lets you push higher power without the gun choking.

The Barrel – Superior STX System

FX have stuck with the removable liner system, and for good reason. The rifling’s pressed from the outside, so the bore’s smooth with less drag on the pellet or slug. That translates to better accuracy, plain and simple.

You can swap liners without depressurising the reservoir. Handy if you want to change calibre or just replace a worn liner.

Stock and Ergonomics

The AR-style stock slides and adjusts, so you can get the length of pull right whether you’re wearing a thick coat or shooting off a bench. The pistol grip’s comfortable enough – nothing revolutionary, but it works.

The chassis has M-LOK slots along the sides and bottom, plus QD points for a sling. Full-length Arca-Swiss rail underneath as well, which is a nice touch if you use a tripod.

Scope Rail – 30 MOA Built In

This is worth mentioning. The rail’s canted forward by 30 MOA, meaning your scope sits slightly nose-down relative to the barrel. That gives you more usable elevation adjustment when you’re reaching out to longer ranges. If you’re shooting past 100 yards, you’ll appreciate it.

Trigger – Fully Adjustable

And I mean fully. First stage, second stage, and the blade itself – height, distance, angle. Takes a bit of fiddling to get it just how you like it, but once you do, it’s crisp. That matters more than most people admit.

Side Lever and Fill Port

Lever’s on the right, short throw, smooth enough. Fill port’s also on the right – probe job, same as most FX rifles. Nothing exciting, but it works.

Calibres and Power Levels

Here’s where you need to pay attention to what you’re buying:

• .177 – 12 ft/lbs 

• .22 – 12 ft/lbs

• .22 FAC – high power

• .25 FAC – high power

• .30 FAC – high power

So if you’re in the UK and you don’t have an FAC, you’re looking at the 12 ft/lb guns. Fine for targets and shorter-range vermin. If you’ve got your ticket, the FAC versions wake things up considerably.

Pushing It Further – Slug Kit and Super High Power Plenum

Here’s where it gets interesting. FX offer an optional slug kit and a “Super High Power” plenum. Fit those, and the rifle can really shift some lead. We’re talking proper slug-gun territory – flat trajectories, serious energy downrange.

Not everyone needs that. But if you’re shooting past 80-100 yards and want to use slugs, it’s worth looking into.

Who’s This Rifle For?

Honestly? It’s for someone who likes to tinker. If you want a gun you take out of the box, zero it, and never touch again – look elsewhere. This one rewards the shooter who enjoys tuning, who wants to dial in the reg pressure, tweak the hammer spring, adjust the trigger just so.

But if that sounds like you? You’ll love it.

It’s also a cracking choice for someone who shoots off a tripod regularly – that Arca rail is genuinely useful – or anyone who’s tired of carrying a fat-bottle gun through the countryside.

Any Downsides?

Fair’s fair, let’s mention them:

• Price – It’s an FX. You’ll pay for it.

• Tuning takes time – All those adjustments are great, but they’re not magic. You need to put the work in.

• Fill probe – I’d prefer a quick-fill, but that’s personal taste.

• Hammer spring adjustment – Taking the stock off every time gets old.

The Bottom Line

The FX DRS MKII Tactical Standard is a proper step forward. It keeps what made the original DRS clever – that slim, balanced feel – and wraps it in a genuinely useful tactical chassis. The adjustments are there for people who’ll use them, not just for a spec sheet.

If you want a PCP that handles like a well-sorted rifle rather than a scaffolding pipe with a scope, put this on your shortlist. Just be prepared to spend some time getting it exactly how you want it.

And in my book, that’s half the fun anyway.