SIG SAUER MCX SPEAR LT PART 1- OVERVIEW AND BUILDOUT
Vložit
- čas přidán 4. 07. 2024
- I do an overview of the Spear LT carbine in 5.56 and build it out to my preference and usecase. Join me for a lengthy discussion and my equipment choices for this build.
00:00 - Intro
0:01:19 - Spear LT discussion and origins
0:09:34 - Discuss potential barrel/handguard flex issues
0:11:06 - Begin field strip
0:12:48 - Remove handguard
0:16:20 - Loosen and then torque barrel retention screws
0:24:20 - Torque handguard retention screws
0:25:00 - Discuss removal of muzzle device
0:25:30 - Test barrel/handguard flex
0:27:20 - Complete barrel cartridge removal
0:29:00 - Arisaka zero retention clamp (not installed due to no instructions on hand)
0:38:58 - Lube, and reassemble bolt group/recoil assembly into receiver
0:42:18 - Begin optic and accessories installation
0:43:00 - Eotech EXPS0-1 and G33 Magnifier unbox
0:43:30 - Unity Tactical FAST riser and Omni FTC unbox
0:46:59 - Iron sights installation
0:57:30 - Magnifier mount and irons conflict
0:58:58 - WML installation attempt but mount is missing so it is omitted for now
1:00:50 - Vertical grip install
1:08:50 - Sig cheek riser upgrade which isn't one because I bought an identical to stock
1:10:35 - Sling QD cup installation
1:14:39 - Weight comparison with LWRC IC-A5 SBR
1:16:15 - Sig AR stock adapter test
Some of the items used on this build: (not sponsored)
Optic and Mount package bundle from WeaponOutfitters.com
ZZZ02910-EOT00609-EOT00598-UTL02453-UTL02445 Optic and Magnifiers with Riser BundlesUTL02453 Unity Tactical FAST Riser - Flat Dark Earth
UTL02445 Unity Tactical FAST-OMNI FTC Magnifier Mount - Flat Dark Earth
EOT00609 EOTech Holographic Weapon Sight - EXPS3-0 - Tan
EOT00598 EOTech Magnifier - G33 - Tan
Surefire Scout Light Setup (not shown in this video, but eventually added to build)
AMC02798 Arson Machine Co. Inline Scout Mount - M-LOK
SUR02288 Surefire DS00 Waterproof Switch Assembly - Surefire Scout Weapon Light Tailcap - Tan
MOD01317 Modlite Modbutton Lite Remote Switch (Surefire or Laser)
AMC00152 Arson Machine Co. M-LOK WireGuide System
Sig Sauer Parts and Accessories direct from Sig:
TAPER CAP, 5.56 BARRELS, 1/2-28 THREAD
SIG SAUER Stock Adapter Low Profile Tube - 1913 Folding
MCX/MPX SKELETONIZED STOCK RISER
Arisaka Parts:
ZRC-SPEAR-LT - MCX Zero Retention Clamp (Handguard: Spear LT Standard Handguard)
*SAFETY CAVEAT*
LOADING YOUR OWN AMMUNITION CAN BE DANGEROUS IF DONE INCORRECTLY. ALWAYS FOLLOW ESTABLISHED GUIDELINES PRESENTED IN PUBLISHED LOAD DATA FOUND IN VARIOUS LOAD BOOKS. PROCEED AT YOUR OWN RISK
LOW-BUDGET VIDEOS LIKE THESE MAY NOT PRESENT ALL FACTS NEEDED TO JUMP HEAD-FIRST INTO THIS HOBBY. WHILE I STRIVE TO ENSURE I DON'T PROVIDE FALSE INFORMATION, OR DATA WHICH MIGHT BE INCORRECT, I WELCOME ALL CONSTRUCTIVE CRITICISM AND COMMENTS WHICH WILL HELP ME MAKE BETTER CONTENT.
I RECOMMEND THOSE OF YOU VENTURING INTO METALLIC RELOADING, TO FIND SOMEONE WHO WILL MENTOR YOU OR SHOW YOU FIRST-HAND PRIOR TO INVESTING IN TOOLS, EQUIPMENT, AND COMPONENTS.
RELOADING CAN BE VERY REWARDING AND WHILE THE CONCEPT IS SIMPLE, THE DETAILS MATTER. RELOADING HAS A LOW BARRIER OF ENTRY, BUT A HIGH BARRIER TO MASTERING THE ART. COMMON SENSE PREVAILS, AS IN MANY OTHER THINGS - Sport
Sub’d. Going to pick mine up after the cali 10-day wait. Learned so much from your videos!
Nice set up
Thanks!
Just stumbled upon your vids, couple of observations from my own experience. The button head torx screws for the forend will easily strip out if you torque them to 45 inch lbs., don't remove the flat head torx screws holding the retainer tab on the bottom of the forend, and finally, my Gisselle reaction rod does not fit the chamber on these guns. I had to ship my upper back to Sig to remove and replace the stripped torx screws on the forend and also asked them to remove the muzzle device as I run a DeadAir Sandman S. Customer service was great, they covered all shipping and turn around time was 4 days. They told me they have received bent and mangled receivers from customers who tried to remove the muzzle device without the proper tools.
Thanks for the information which is sorely needed. I have not yet tried to do anything with the muzzle device, and will look into sending to Sig for removal although I do have a dedicated barrel vice I could use to clamp down the barrel outside the receiver. Good to know on the handguard screws as well. Thanks for watching and for the useful info.
Little update. I removed the muzzle device by clamping the barrel (removed from upper and also removed the oprod to give me more room) in a dedicated barrel vice. I have bushings that enabled me to spin off the flash hider with a 3/4 socket and a few whacks with a dead blow hammer. Did not soak in water but if one doesn’t have a barrel vice, water soak is the only option.
The reason why so many strip the handguard screws is because they're NOT standard torx t15! They are Torx Plus IP15 screws. Wish Sig would note this !!
I found a Sig suppressor for my MCX Spear LT and it is currently in jail! When I had called Sig, they didn’t have any in stock so I’m grateful that I found one.
Yeah me too. 7.62 but it will suffice. It’s a compact one and titanium so not very quiet we’ll see how it does when it comes out of jail.
Can’t go wrong with an mcx. Curious if your gonna do some more of the long range shooting videos.
Yes i have some long range videos planned.
Do you also feel a looseness between the upper and lower? Especially when you pull the gun towards you in the shooting position?
No looseness here at all. Actually quite tight. These receivers come shipped with an installed Accu-Wedge which tightens up the 2 halves.
Wondering if you ever put the vertical grip farther back to help you use your light. Noticed it was way far forward
I have since made this into an SBR. The vfg is further back now by necessity.
Question, the part that holds the bolt catch just needs to be punched out right? Its not threaded?
Hello there, any idea how I can block the stock from folding? I live in CA and just purchased a MCX spear LT.
I’m in Texas…DFW area and bought that gun back in June….haven’t been to range yet because of the Dang heat.! I bought the retention piece recently but waiting until I get the gun out and shoot it first. What part of Texas are you living in?
I'm just North of Houston. Yeah I hear you about the heat. I've had 110 degree range days shortly after. It's brutal. Hope you get to shoot yours soon. Thanks for watching.
I got the big brother and want this one too
Yeah I hear you. I want the big one too but I want it in either 6.8x51 or 6.5 CM
any more barrel flex issues? I have the 9” 300blk. Mine doesn’t seem to have the issue, but I’m concerned been seeing this all over the place.
I believe in my case it was mostly if not all, the handguard flexing and not the barrel, as I took it on a range trip and put over 300 rounds through it in quick succession. I stuck it in a case and when i pulled it out at home the. handguard has flexed over to one side. A boresight confirmed the barrel was not affected. I ended up installing the Arisaka zero retention clamp and it really stiffened the entire thing up. In your case the 9” barrel and shorter handguard will have a much smaller lever moment so the issue should be less apparent. Will see over time if it happens again but will confirm zero next time I’m out just in case.
@@shootloadrepeat thanks! I appreciate it
Are you able to use the BUIS when you have a riser?
Yes but just barely. It's not lower thirds, more like lower 7/8ths lol
If you want to remove the flash hider I have seen a few guys say they soaked it in hot water which I guess loosen the rock set stuff they put on it.
Just filed paperwork on a Sig SLH 7.62 compact Ti can. I may leave it on after all. I figure I'll soak in water anyway. I have a 9L heated ultrasonic I can stick the barrel into and then put this in a barrel vise to spin it off if I get antsy waiting a year for approval to come in.
I filed for one also about a month ago as I found only one place with one in stock so I snatched. Now its the waiting game….lol
Its the Sig SLH 7.62
For me to remove the flash hide I put the tip of the barrel in boiling hot water and held it there for about 5-10 minutes. It was still VERY difficult to twist off I almost ended up breaking my desk with the vise lol. I wish Sig wouldn’t put rock set on all the flash hiders. But anyway really nice video thanks for checking mine out.
Do you think SIG will release the MCX Raptor soon?
Haven’t heard of the raptor but if it’s anything like the current rattler then I will try to get one. I’m debating on SBR’ing this one and getting the 11.5 barrel as that is more my preference. Thanks for watching
What size Torx do I nee for the handguard and barrel screws?
You probably already have your answer but it's T15@ 35in-lbs for the handguard retention screws and T27 @60in-lbs for the barrel clamp. Torx of course.
The handguard screws are NOT standard torx t15, they are Torx plus IP 15. This is why so many strip the srews! Wish Sig noted this. Not sure on the Barrel screws...but I suspect the same ??
Sub’d! Thank you very much for your videos! Learned so much from them!
By the way, I have an opportunity of grabbing an LWRC SPR or a MCX Spear LT. Any thoughts to which one you would pick?
Thanks for the sub! As far as which one? LWRC is generally higher quality, but if you want something that is different and not just another AR, get the SIG. I have LWRC also and it’s been great.
Okay got it! Just in a dilema since the price and condition of both are similar.
Im planning on using it for 3 gun/ multigun.
Cant go wrong with either one?
@@shootloadrepeat quick question, i was trying to do a function check of the spear lower with the upper removed. The safety on the semi postion and the trigger wasnt pulling. Is that normal since the upper is off?
What sling are you using?
I was using the Blue Force Gear Vickers Sling (Combat Applications Sling) This one: www.blueforcegear.com/vickers-one-sling
But I just set up and will use Edgar Sherman ESD sling here: www.weaponoutfitters.com/edgar-sherman-design-sling.html
I've been using the BFG slings for years, but I like how compact sleek the Edgar Sherman ones are. Will give them a try actually tomorrow. Thanks for watching.
What stock is that ?
In this video it's just the standard Sig stock that comes with the rifle versions. I'm now running JMAC customs wire stocks and skeletonized bars interchangeably.
You put your front iron sight on backwards 😅😅😅😅
I also said as much in the text callout. I corrected it as well.