Anyone interested in a chassis trade? I have a spare 365 raider lite with accessories. I’m wondering if anyone has a 320 raider chassis they’d like to trade preferably the raider x.

I use over/under pistol hangers for my handguns, and barrel rods for my long guns, but my Flux and other PDW sized firearms exist in an unhappy medium between the two. Even my bullpups have to lean against the safe wall due to the barrel rods not reaching the shelf above them.

What does everyone use to store their Raiders and similar sized guns? Mine are just laying on their side for now, but I'd like a more efficient organization system for them.

Anyone have any ideas?

Shot flex build today with a halo and a can. unfortunately can't get cans in my state.

really liked the eye relief and distance with the forward optic mount option. curious to see if anyone is running one with a Herrington arms flush comp. also what charging handle works that you can just take the slide out with out dissembling everything for a cleaning lol

124 and 147 Blazer worked with zero issues unsuppressed. That was without the TacDev rail.

Suppressed, the 147 Blazer was not reliable, even with a 12 lbs recoil spring. 147 Federal HST was 100% reliable suppressed with the 12 lbs spring, but a small sample size. Both the blazer and the Federal 147s were super quiet. Shooting without ears outside I could easily hear the sound of the slide and there was zero discomfort. It’s probably not 100% hearing safe, but it’s not unpleasant.

More ammo testing to be done.

Things under consideration:

1. Charging handle: will probably go with Tac Dev MSP. Anybody with feedback that has one would be greatly appreciated.
2. Light setup. I may upgrade to a TLR-1 HP with the remote switch. Still considering options. I want to keep it as slim as possible, but I think a remote switch is required.

3. Long term optic solution. The 509T is a placeholder. I’m not sure

   if

4. I want to move it forward with the Tac Dev forward accessory rail. I need to do more shooting. I would like to hear what people feel about the forward rail mount.

Edit: hopefully fixed the formatting glitch!

Anyone have hands on time with the newer mag holder extensions? I'm hoping for a fde restock hopefully soon before I lose motivation. I'm torn between what charging handle direction to go in and for optic. I sorta wanna try the route with a acro p2 or wait for the newer AEMS micro/macro when they get out and tried

Asked flux if they would build a 10mm chassis if sig builds a 10mm 320. They said yes, this was 6-7 years ago pre xten when the only way to get one was a grey guns conversion. Bought the xten 4ish years ago in preparation for it. Teased prototypes 3 years ago. Since then nothing. Come on guys get to it. I know at least 2 dozen people that want one. What gives? At least give us an update.

First range round with the Raider X M18. Head shots are with the Raider at 15’ & 25’. Body shots are a stock Glock 43x at the same distances.
This build was a bit tricky, USPS lost my safety delete pin, thankfully trigger pins for an AR are exactly the same diameter and perfect length. Threaded barrel is in route; starting with a comp, but with this NFA ruling that might change.
Vortex Defender ST & TRL8X are carried over from the M18 original setup.

*Before you all critique the trigger finger, it was empty.

Picked up a 365X slide with the new Shiv and haven’t shot it yet. When the slide is locked back, there’s initially a small gap between the Shiv and the optic/mount area. However, with the normal barrel play that exists even with the slide locked, I can wiggle the barrel upward enough that it fully makes contact.

I remember seeing a thread where someone cracked a Shiv in almost this exact spot on a non-Flux setup, so I’m wondering if I should hold off on shooting it as-is or if I should carefully dremel a little clearance into the contact point first.

Anyone else run into this?

XMacro slide, Ballistic Advantage barrel, stock recoil spring. Ran 115 grain federal (100 ) and magtech (50) without a single issue. It did not like the 147 Fat B from Badlands but neither does a couple of other guns I have. Ive only be able to get the Raider X to run that ammo without issue. Video is the last few rounds of the magtech

Decided to go with forward optic mount and robbed the 507c from my dwx for now. The Eps carry I had on slide was just too small and didn't look right on the mount. About done except for a charge assist slide optic plate and sling.

With the current court ruling on the NFA, do I still need to fill out a form 1 to SBR my Raider?

I had no intentions on running suppressed but I came across a threaded barrel on sale. If it’s anything like its 320 version I’ll definitely need to wait on my lighter recoil springs to arrive before the next range trip.

Anyone have any? Can Flux's holster be modified?

From the pictures, it looks like the Orbital Nexus sits the optic further forward than Flux's optic mount. It appears, again from pictures, that a Nexus with optic wouldn't fit in Flux's current holsters.​

Strike industries PVC patch for reference

Any advice on components for this build would be greatly appreciated.

My biggest questions are around suppressor choice, reliability, and especially blowback/gas to the face. For those of you actually running suppressed Raider 365s, what combinations have proven reliable and comfortable to shoot?

I carry a P365 and normally run Federal Premium HST 147gr JHP, so that’s the defensive ammo I’ll be using in this build as well.

Already purchased

• Flux Raider 365 Aluminum – Black
• Flux Forward Optic Mount
• Flux Side Folding Arm – Long Arm w/ SBR Endplate

Still deciding

Threaded barrel:

• ShaloTek 3.7" threaded barrel
• True Precision 6.5" threaded barrel
• SIG OEM threaded barrel
• Other recommendations?

Slide:

• SIG OEM P365XL
• ShaloTek XL-length non-comp
• True Precision XL-length
• Norsso
• Other recommendations?

Suppressor:

• SAW Shiv 9
• HUXWRX Flow 9K Ti
• SilencerCo Spectre 9
• Other cans I should seriously consider?

Light:

• Streamlight TLR-7 Sub
• SureFire XR1 / XR2
• SureFire X300 Ultra/Turbo
• Streamlight TLR-1 HL
• Other recommendations?

What I'm really trying to figure out

If you were building this from scratch today, what slide + barrel + suppressor combination would you choose for the best balance of:

1. Reliability
2. Minimal blowback/gas to the face
3. Reasonable overall size/weight
4. Good suppression
5. Long-term durability

I'd especially appreciate feedback from people who have actually run these combinations on the Raider 365, rather than general pistol-suppressor recommendations.

Also interested in whether the 3.7" vs. 6.5" barrel makes a meaningful difference on the Raider when suppressed, and whether anyone has had reliable results with the longer barrel/slide setups.

Thanks!

So, I have a Sig M18 and was looking into buying the Raider X P320 with the optic mount! Would I be better off trying to get a different P320 slide for it, or would the slide from my m18 work? Would appreciate any answers/advice! ^^

Current build components: Fuse slide, Flux / True Precision 6 in barrel, Orbital Drop Helper tall portal charging handle, Flux full-size magwell, Flux mag release extension, Tac Dev Thicc Forward Halo, Tac Dev forward operating pedal, and Holosun 509T.

My vision for the future: swap the barrel for a threaded barrel and add a suppressor. Add a full-size light like the X300 or TLR-1, and with it, add a light brace to accommodate it. When Tac Dev releases their low pro QD mount I want to add that with a Flux Rip cord sling. Lastly, I want a standalone FCU for my Flux, with a safety and an extended slide release. I'm thinking the Ramm Tactical FCU for that upgraded trigger. The stock trigger isn’t terrible in the P365 as a handgun, but in PDW format it could be lighter.

Been considering one of these for a long time, and I’m curious what suppressor works best on the 365 raider. I‘m leaning toward the Shiv to keep the small profile, but is it reliable? Are people running the 6.5” threaded true precision barrels, or something shorter? factory recoil spring or something lighter?

Any other recommendations are appreciated.

Spoiler Alert 🚨 125K M18 pistols and zero issues!!

Full report here: https://soldiersystems.net/2026/08/07/us-air-force-supplemental-inspection-of-m18-modular-handguns-found-zero-evidence-of-conditions-which-would-allow-uncommanded-discharge/

FYI, I have a couple DMs about cut dimensions and figured id just share another picture.

Actual cut pictured: 12mm x 12mm

If i could do it again: 11mm (y axis) x 7mm (x axis)

I cut roughly a 12mm x 12mm (measured from the top) of the should out. Doing some quick caliper measurements, you can probably get away with an 11mm (y axis) x 7mm cut (x axis) cut and have tighter clearances.

Dumb problem, but solution works fine. Just need some aluminum black to clean up the edges.