Spectre G3 10/22 Chassis

Finished my build today. Runs great, had to modify the Tandemkross stock so it doesn't fold to stay NR.
Only recommendation I have for SBI is to laser engrave the receiver markings before anodizing, would've preferred a more subdued look.
Now just gotta track down some TUF-22 mags.
View attachment 1115096
Nice build!

We do laser engrave before anodizing now. You can darken your engraving by putting some black sharpie on it and then rubbing the excess off.
 
Last edited:
Thus looks amazing. What are the build details?
Was mostly assembled with leftovers.
SBI receiver & chassis of course, used mystery 11.5" bbl off GP, factory Ruger bolt, trigger housing & flash hider, pistol grip leftover from a Ruger PC9, Tandemkross picatinny stock, and a set of Samson folding sights that came off a long gone Robinson XCR.
 
20260330042048-6d01448a-xx.jpg
 
Looks a lot like mine! which I am thoroughly enjoying btw.
Any interest in producing another forend for the G3 that has beveled corners instead of the Arca rail?
Can the G2 forend be modified to fit on the G3 chassis? Is it simply a matter of skipping the lower screw mount hole?
 
Looks a lot like mine! which I am thoroughly enjoying btw.
Any interest in producing another forend for the G3 that has beveled corners instead of the Arca rail?
Can the G2 forend be modified to fit on the G3 chassis? Is it simply a matter of skipping the lower screw mount hole?
No, we have no plans for different handguards. The gen 2 handguard is not compatible.
 
IMG_9343.jpeg

Finished my C71 build not long ago, might undergo a couple more changes. Around 700 rounds so far with the original bolt and barrel. Yeah, the Goobers mount is replica, but I also used a knock off Unity earlier and it held zero fine as long as you torque everything down. And the Goobers mount really help my neck.

My only question though, what really is the reason why most designers keep the AR grip mount piece a separate component? Is it actually stronger that way? Or is it like that to mostly save machining time?
 
View attachment 1125919
Finished my C71 build not long ago, might undergo a couple more changes. Around 700 rounds so far with the original bolt and barrel. Yeah, the Goobers mount is replica, but I also used a knock off Unity earlier and it held zero fine as long as you torque everything down. And the Goobers mount really help my neck.

My only question though, what really is the reason why most designers keep the AR grip mount piece a separate component? Is it actually stronger that way? Or is it like that to mostly save machining time?
It reduces the amount of raw material significantly. This helps keep the materials cost down and reduces machine time.
 
It reduces the amount of raw material significantly. This helps keep the materials cost down and reduces machine time.
Ah I see, that’s what I predicted too. Especially when I compare it directly to an AR lower.

However does it retain all the strength needed? I just wanna know because holding the gun one handed or bull barrels setup aren’t uncommon
 
Ah I see, that’s what I predicted too. Especially when I compare it directly to an AR lower.

However does it retain all the strength needed? I just wanna know because holding the gun one handed or bull barrels setup aren’t uncommon
We have shipped thousands of 10/22 chassis using this grip mount system and have never had an issue.
 
We have shipped thousands of 10/22 chassis using this grip mount system and have never had an issue.
That’s great! I’m just curious because apparently that’s a very common design among a lot of other 10/22 chassis

It’s also because I’m doing a bit of Engineering analysis on you guys’ chassis designs so I just want to check my findings
 
Then wouldn't you understand the strength of the screws involved VS the weight of an entire rifle VS the millions of guns in circulation that use the same system? You think a bull barrel is weighing more then a full AR15 with NVG and lasers running a full 30rd mag?
 
Last edited:
Then wouldn't you undertand the strength of the screws involved VS the weight of an entire rifle VS the millions of guns in circulation that use the same system? You think a bull barrel is weighing more then a full AR15 with NVG and lasers running a full 30rd mag?
I mean I definitely would understand that. Though you and I both know that that mounting piece on an AR is built into the lower

With a screw that size, I'm always a bit skeptical, simply because the AR grip screw is, well, way bigger and has far more thread engagement. And I really just have a tendency to overbuild things.
 
Back
Top Bottom