MDT | CZ 457 COMPETITION CHASSIS
MDT's Flagship Chassis, Built for the CZ 457.
The MDT ACC Elite Chassis for CZ 457 brings full-size PRS ergonomics to rimfire: a 19-inch forend with full-length ARCA rail, a toolless SRS-X Elite buttstock, the Vertical Elite grip and internal and external weight pockets to tune the rifle up to 16.6 lb. Machined from 6061 aluminum and finished in black, it's purpose-built for NRL22 and PRS Rimfire.
Rimfire matches reward the same things centerfire matches do: a stable rifle, consistent position behind the gun and a setup you can adjust fast. The ACC Elite gives a CZ 457 exactly that. It mirrors the controls and feel of a full-size precision rifle, so practice with a .22 translates directly to your centerfire game, and it gives a rimfire the weight and support it needs to stay settled on barricades and props.
Built to Win on Props and Barricades.
The 19-inch forend carries a full-length integrated ARCA rail and a 1.75-inch barricade stop, with full-length M-LOK side slots and additional slots underneath for accessories. The SRS-X Elite buttstock adjusts length of pull and cheek height and depth without tools, and an M-LOK slot under the buttstock accepts a bag rider. The included Vertical Elite grip adjusts for depth and angle, with removable thumb rests and an ambidextrous magazine latch. A V-block bedding system locks the action in for repeatable accuracy, and internal and external weight pockets let you tune balance and total weight.
Prefer another finish? The ACC Elite for CZ 457 is also available in Titanium Blue, FDE and Arctic Snow. Comparing MDT options? See the MDT ACC Premier Gen2 for CZ 457.
Build a Rifle Worth the Chassis.
Start with the CZ 457 Varmint MTR Barreled Action, with its 20.5-inch heavy barrel and MTR match chamber, or step up to a premium Lilja match barrel such as the Lilja 24-Inch 1.18 Straight Taper or Lilja 26-Inch 1.00 Straight Taper. Add an ARCA bipod like the MDT Ckye-Pod Gen3 Compact to take full advantage of the rail.
With more than six years building and supporting CZ rimfire rifles, Pete's Pillars manufactures CZ 457 upgrades in the USA. Refresh the bolt with our PP457LCI Extended Stainless Cocking Indicator, PP457FP-T Reshaped-Tip Firing Pin and PP457ES Extractor & Holder Set, and dial in the bolt handle with the PP4KG Slim Knurled Grooved Bolt Knob. Keep it fed with the L3i CZ 457 Billet 10-Round Magazine or Position7 CZ 457 Billet 10-Round Magazine, and browse everything in our CZ 457 Parts & Upgrades Collection.
Product Specifications
Manufacturer: MDT (Modular Driven Technologies)
Product: ACC Elite Chassis System
MPN: 107957-BLK
Compatible Rifles: CZ 457, Right Hand
Material / Finish: 6061 Aluminum, Black
Forend: 19 Inches, Full-Length ARCA Rail, M-LOK Slots, 1.75-Inch Barricade Stop
Buttstock: SRS-X Elite, Toolless Length of Pull and Cheek Height/Depth
Grip: Vertical Elite, Adjustable Depth and Angle (Included)
Bedding: V-Block System
Weight Tuning: Internal and External Weight Pockets, Up to 16.6 lb Total Rifle Weight
Your Choice: CZ 457 Barreled Action and Magazines (sold separately)
Frequently Asked Questions
Fit, adjustments, weight tuning and building out your CZ 457.
Is a grip included?
Yes. The ACC Elite comes with MDT's Vertical Elite grip, adjustable for depth and angle, with removable thumb rests and an ambidextrous magazine latch.
Does it fit my CZ 457?
It is designed for the right-hand CZ 457 rimfire action. Check barrel channel clearance if you run an unusually large-contour aftermarket barrel.
Is the barreled action included?
How heavy can I make the rifle?
Internal and external weight pockets let you tune balance and bring total rifle weight up to 16.6 lb, ideal for keeping a rimfire settled on barricades and props.
Does the forend work with ARCA bipods and tripods?
Yes. The 19-inch forend has a full-length integrated ARCA rail and a 1.75-inch barricade stop. ARCA bipods like the MDT Ckye-Pod Gen3 Compact clamp directly to it.
Which magazines should I use?
Use magazines made for the .22 LR CZ 457. Billet options like the L3i 10-Round and Position7 10-Round are popular with NRL22 and PRS Rimfire shooters.
What Pete's Pillars upgrades should I add?
Small Change. Big Impact. Pete's Pillars.
