Thanks for watching! Rifle safety checked prior to filming.
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Sig Sauer M400 SDI XSERIES Rifle – Review: The Good, The Bad and The Ugly
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I just heard back from Sig Customer Service re: the barrel & bolt. "Yes, the barrel is cold hammer forged and both are HP/MPI tested."
Take a pair of Klein linesman wire strippers and they will have a screw/bolt cutter, I cut all my screws when they’re too close to a barrel or anything underneath, works like a charm.
My next rifle, l love my tread, the three throng flash hider is so much better on my sig tread m400 then a bird cage. Got the rifle, for 895, 1450 after upgrades on trigger,cmc, radial charger,red dot,tac 6 case, vert grip. Then .556 ammo, 45 cents a round. The new tread has one place instead of two for sling. The handguard looks like science fiction. I am sure you can switch it out.Its quite different then my tread, like the tread 2.00 best with new upgrades , most people had that one anyway, the 13 inch looks great, with some stainless steel showing to the flash hider.
I had the same issues with the screw length and had to file screws at every location that was mounted along the barrel, otherwise, the screws hit the barrel before they were tight. That's the only fault I have with the rifle, but I love mine.
Recently purchased a m400 sdi x, and it has been great. Only problem ive found is magpul gen m2 will not latch. Metal mags and gen m3 work fine. I have tried adjusting mag catch/release but still doest like gen 2, moe.
I cannot get the flash hider off of mine. Tried boiling it for 20min. and its still locked tight on there… still love the rifle though
What pressure switch/light combo is that?
the barrel thickness is by far the most frustrating thing. i have to take a dremel to the screws just so i can mount a mlok qd mount for a sling |:
I love the lower. Interesting attachment for the HG.
What kind of bcg does it come with? Nitride? Phosphate chrome lined? Barrel info?
Wow, the mlok clearance between rail and barrel makes this a no-go.
Thanks for heads up. I’d be extremely pissed to discover this after purchasing.
Good video and review, thanks.
Good review.
This and the lwrc di seem to be the best bang for your buck in the AR department
Has anyone tried using this platform with a suppressor? Been thinking of getting one, and then a suppressor so was just curious, thanks in advance.
What light do you have mounted?
Can you send me the link to the heat shield?
Good price for a full ambi lower.
It's also got steel insert pins for the charging handle grooves on the upper receiver.
Thx for the review! have been wanting to get this gun for a while now but had to do the research first.I'm going to pull the trigger on this one ,so to speak… same price as yours. as for your modifications…I have done mods to every gun I own and what you did worked so…not sooo ugly m/
I have one. Nice weapon. Removed the front grip though.
With the screws I can understand
Is this rifle over gassed?
NICE!
The m400 arrives covered in a rust inhibiting coating. SIG customer service just says to clean it all off. Asked if it should be cleaned off of barrel and gas tube under the hand guard too, and the lower receiver insides. She said yes. I was like I need to remove the hand guard on a new gun like this? So difficult to get a real interaction so far with this company. Not pleased on that front.
This or bcm upper and another lower. Was going to be aero p. but they have issues in WA now.
Thanks for the review! I just picked up mine. Super excited! Will you please send a link for that heat guard? Thanks!
Hi
I just purchased one! None of the things you were saying about it really bother me! I know they don’t jam up there barrel and triggers are very good quality. Looks nice. 👍
This is really good deal. Especially with the features.
If after market compatibility was the worst part, I get and I agree but sounds good to me. Good vid, great info. Tango!!
100% recommend sig m400's been using them for years super reliable. you can find them cheap sometimes too if you shop around. the strange proprietary rails are kinda an issue but just pick the one with the rail you need and you wont need to change it.
I just picked up my sig m400 for 830 out the door and super stoked about it
Was at Sig Experience in Epping today. Salesman said it's a 2 lbs pull with 2.5 lbs break I believe. It felt nice. Im probably going to pick one up tomorrow now after playing with it.
I have the m400 tread fucking love it by the way and im really considering getting this or the bcm recce mcmr idk I need a million dollars lol
I love my m400, have it few years now with no problems whatsoever. Changed the barrel, gas block, hand guard and bcg. Went to FN chf 1:7 twist chrome lined mid length instead of the factory stainless steel 1:8, went with centurion quad rail, SRM adjustable gas block and cryptic coating bcg in chrome and this thing can operate at much higher temps than almost all bcg’s on the market. Cryptic has the best quality bcg for the price. Runs like a Swiss watch and can pump rounds all day
Is that the OD green version?
I want this ar so bad but its banned here 😫😫😫😫😫 I hate illnois
Try the Sig whiskey 3 scope. 30rds within the diameter of a quarter.
Do they have stock iron sights in the box? Considering this one as my first AR-15.
Good review! Enjoying mine quite a bit. Which Magpul handguard did you end up with? Only other accessory I'm considering before I send er off for Cerakote.
Nice video! Have you tried running different types of ammo through? Steel cased ammo?
Nice review. Thanks
Thoughts on the left handed mag release ? Solid sturdy/firm ? confident for shooter ?
I’ve had the tread 556 for a couple years now it’s been real good no problems at all except I wish I had the big bro of it…🦅🇺🇸
I have the Sig M400 tread and bought the 15” mlok forend that’s better than the stock one, watching your review this is what the tread should of been from the start but my tread has been a fantastic worry free rifle. My next AR will be this X series