NRL22 Base/Open chassis build (MTR barreled action)
Parts total: ~$898 (as of Oct 2026; excludes rifle, optics, ammo, tax, shipping)
Goal: a competitive NRL22 rifle with a T1x-specific chassis.
| ID | Part | Price |
|---|---|---|
| P001 | KRG Bravo Rimfire (T1x) | $399.99 |
| P019 | TriggerTech Special (RH) | $224.99 |
| P030 | EGW HD T1x Picatinny rail, 20 MOA | $69.99 |
| P042 | Schmit Works +5 extension (22LR) | $34.99 |
| P045 | Anarchy extended mag release | $14.99 |
| P063 | MDT Oryx bipod | $99.99 |
| P065 | KRG tool-less LOP adjuster | $52.99 |
| Total | $897.93 |
Why: - The Bravo is the most widely sold T1x chassis. It ships with a stainless recoil lug and is AICS-pattern. - The TriggerTech Special is a drop-in T3x trigger that fits the T1x (AR confirms the shared trigger). - The extended release and +5 extension address the chassis mag-release ergonomics (known_issues #8). - CZ 457 crossover: the Bravo is also made for the CZ 457, and the bipod and LOP kit are platform-agnostic.
Alternate chassis: - MDT Oryx P002 ($449.99) with Oryx ARCA rail P061 ($99.99) - XLR Element 4.0 P007 ($424)
Parts list with retailer links
Every part referenced in this build (including swaps/alternates). Confidence reflects how well fitment/price was verified.
Product links go to retailers and may be affiliate links; we may earn a commission. Prices as of Oct 2026. Affiliate disclosure
| ID | Part | Fits | Price | Confidence | Notes | Link |
|---|---|---|---|---|---|---|
| P001 | KRG (Kinetic Research Group) Bravo Chassis Rimfire - Tikka T1x chassis/stock | T1x (uses factory T1x mags) | $399.99 | high Manufacturer lists T1x variant | Aluminum backbone, polymer forend w/ M-LOK, Harris stud, LOP spacers (12.8-15 in), hardened stainless recoil lug (replaces factory lug), accepts barrels up to 1 in; accepts factory, Barnard and KRG Midas triggers. 3.1 lb. Colors Black/FDE/Sako Green/Stealth Grey Source: https://kineticresearchgroup.com/product/bravo-chassis-rimfire/ · checked 2026-10-10 | View at retailer |
| P019 | TriggerTech Tikka Special Trigger (single-stage, 1-3.5 lb) trigger | T3, T3x, T1x; RH and LH | 224.99 (RH) / 254.99 (LH) | high Manufacturer lists T1x | Drop-in; removable safety; Zero-Creep; reviewer notes it keeps the bolt lock Source: https://triggertech.com/products/tikka-special-trigger-single-stage · checked 2026-10-10 | View at retailer |
| P030 | EGW HD Tikka T1x Picatinny Rail 0/20/30/40 MOA (RH & LH) scope rail/base | T1x MTR/UPR; handed | $69.99 | high Manufacturer fitment guide | T1x hole spacing 2.508 in center spread (not T3x 3.245 in); 20 in-lb + blue threadlocker; SKU 80520 / 80520-LH / 80523 Source: https://support.egwguns.com/hc/en-us/articles/56039078646555-Tikka-T3- · checked 2026-10-10 | View at retailer |
| P042 | Schmit Works Tikka T1X +5 Magazine Extension magazine extension | T1x .22 LR (not .17 HMR per listing) | $34.99 | high Retailer listing names T1X | Source: https://www.anarchyoutdoors.com/tikka-t1x-5-magazine-extension/ · checked 2026-10-10 | View at retailer |
| P045 | Anarchy Outdoors Tikka T1x Extended Mag Release (T1X-EMR) magazine release | T1x - intended for chassis/AICS-style magwells | $14.99 | high Maker T1x product | 3D-printed nylon; watch the small spring under the factory lever during install (review) Source: https://www.anarchyoutdoors.com/tikka-t1x-extended-mag-release/ · checked 2026-10-10 | View at retailer |
| P063 | MDT ORYX Bipod bipod | Picatinny/sling-stud via adapters (universal) | 99.99-109.99 | high Universal interface | Budget bipod Source: https://mdttac.com/products.json · checked 2026-10-10 | View at retailer |
| P065 | KRG Rimfire Tool-less LOP mechanism accessory | KRG Bravo (T1x/CZ 457) | $52.99 | high Retailer lists for KRG rimfire chassis | Source: https://www.anarchyoutdoors.com/search.php?search_query=t1x · checked 2026-10-08 | View at retailer |
| P002 | MDT ORYX Chassis System - Tikka T1x chassis/stock | T1x | $449.99 | high Manufacturer variant 'Tikka T1x' with price | Variant SKU 104343-BLK/FDE/ODG/Gray. Optional full-length Oryx ARCA rail ($99.99) Source: https://mdttac.com/products/oryx-chassis-system.json · checked 2026-10-10 | View at retailer |
| P061 | MDT Oryx Chassis ARCA Rail - Full Forend Length ARCA rail | T1x in MDT Oryx chassis | $99.99 | high Maker accessory for the Oryx chassis | Source: https://mdttac.com/products.json · checked 2026-10-10 | View at retailer |
| P007 | XLR Industries Element 4.0 Chassis (aluminum) - Tikka T1 Rimfire chassis/stock | T1x (factory mag) | $424.00 | high Manufacturer variant 'TIKKA T1 RIMFIRE' | Ambidextrous T1 rimfire inlet. XLR FAQ: Envy (AICS) may need mag-latch removal for a T1; Element is the listed T1 option Source: https://xlrindustries.com/products/element-chassis.json · checked 2026-10-10 | View at retailer |
Before you buy
All part IDs refer to parts.csv. Prices are the USD list/street prices recorded on 2026-10-08 and exclude the rifle, optics, ammo, tax and shipping. Rifle reference prices (variants.csv): MTR MSRP $649 (SI, Oct 2024), Hunter ~$799, UPR ~$1,319, Ace Target $1,549 (16 in) / $1,799 (20 in).
Common rules for every build: - Use T1x-specific rails. T3x rails don't fit (EGW: 2.508 in vs 3.245 in hole spread), and rails are handed. - Torque per the manual or the chassis maker. The T1x manual says 7 Nm (62 in-lb) with a metal guard. - Confirm thread pitch: US 1/2-28, UK/AU 1/2-20. - Trigger springs/triggers set below 2.5 lb go below Tikka's stated minimum, so label those builds competition-only and recommend gunsmith installation.