The KIDD Chassis Supergrade system—built for precision, modularity, and
rapid barrel swaps.
What makes it special
·
Precision-machined KIDD Chassis with integrated rear tang
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Interchangeable
Supergrade Barrel system using a long 1 7/8" barrel extension
·
Modified
stock for effortless barrel swaps without removing the action
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Adjustable
buttstock for tailored fit and stability
·
Swap any
KIDD Supergrade barrel quickly and repeatably
·
Integrated M-LOK®
slots for accessory mounting
Key specs
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Extended 1
7/8" barrel extension vs. standard 3/4"
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Three-part locking system: indexing flat, clamping V, clamping flat
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Barrel secured by two 1/8" hex clamping screws
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Receiver: billet 6061-T6 aluminum, anodized black or silver
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Scope bases: 0 MOA installed, optional 10 -50 MOA
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Rear tang and front flat fully inletted/locked
into chassis
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Assembled with bolt buffer, countersunk receiver
pins (1/16" hex), guide
rod, tuning springs, take-down screw
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Includes tested/fitted 10-round rotary magazine
·
FFL required for shipment
·
US Patent
9664472 (issued 5/30/2017)
Barrel weight
(4lbs-1.62lbs)
Avoiding barrel droop — our engineering
KIDD’s latest innovation replaces the threaded Supergrade system with a
next-generation slip-fit system designed around a 1 7/8" extended barrel extension. This length
dramatically improves harmonics, rigidity, and alignment, while still allowing
the shooter to slide the barrel in and out of the receiver effortlessly.
Our three-part stabilizing interface—indexing flat, clamping V, and clamping flat—creates
a consistent, repeatable lock-up. The indexing flat ensures perfect timing of
the barrel so the extractor cut aligns every time. Two 1/8" hex head screws lock the barrel into the
reinforced receiver with stability that rivals threaded systems, while offering
the freedom to swap any KIDD Supergrade barrel.
Each Supergrade chassis is inletted for the rear tang, adding a secondary anchor
point for improved rigidity. The chassis also includes strategically engineered
access points so you can remove and install barrels without taking the action out of the stock. Clear the
chamber, remove the magazine, loosen the clamping screws, slide out the barrel,
insert the next one with slight downward pressure and rotation, align via the
indexing flat, and torque to 26.6 in-lb
using KIDD’s locking torque driver.
KIDD transitioned from the older threaded
Supergrade to this slip-fit system to restore true modularity—the heart of the
10/22® platform—without sacrificing accuracy or stability. Now shooters get
both: Supergrade precision and full barrel interchangeability.
The receiver includes an easy-access rear cleaning hole, plus
interchangeable scope bases in multiple MOA options for distance flexibility.
All base and tang interfaces are precision-matched for maximum rigidity and
repeatable accuracy.
Installation & break-in tips
·
Remove magazine and ensure the chamber is clear
before swapping barrels
·
Loosen only the two 1/8" clamping screws—no need to remove the
chassis
·
Insert new barrel with slight rotation and
downward pressure
·
Align perfectly using the indexing flat
·
Torque clamping screws to 26.6 in-lb for best performance
·
Use M-LOK®
slots to mount accessories without removing the action
Special federal shipping rules
This chassis-based rifle/receiver/barreled action must ship to your local FFL dealer. Provide your FFL’s
name, phone number, and email in the comment box above.
Use your own billing and shipping
information at checkout—using your FFL’s address may cause payment
decline.
We will obtain and verify the FFL’s license with the ATF before shipping. You
will complete Form 4473 in
person at your FFL.
(Some states require additional steps.)
Must be 18 or older to purchase a rifle
barreled action.
