4 Best Athlon Optics Midas Burst Tsr1 Red Dot of 2026 To Match Your Slide Cut
Shared model labels often hide radically different mounting footprints beneath the hood. A single optic family can span multiple variants under nearly identical names, yet one version uses an RMR cut while another requires a DeltaPoint base. Overlooking that detail leads to mismatched mounting patterns, screws that never thread properly, and a wasted trip to the range. Lumping an enclosed emitter and an open reflex together under the same banner only compounds the issue, leaving shooters stuck buying unexpected adapter plates and dealing with annoying returns.
Securing a dot that mounts flush against the slide without shims or guesswork restores confidence on the firing line. Sorting out the options comes down to matching the exact footprint to the firearm, choosing between the sealed debris protection of a closed housing and the low-profile glass of an open sight, and picking a precise 3 MOA dot for distance or a 6 MOA dot for rapid target pickup. Here is how each option lines up so that slide gets the right glass in 2026.
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Last update on 2026-10-07 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API
Does the Athlon Midas Burst TSR1 share the same mounting footprint as the Midas TSR1-M?
No. The Athlon Midas Burst TSR1 uses a DeltaPoint mount, while the Midas TSR1-M models use an RMR footprint. Because Athlon shares the TSR1 designation across both platforms, assuming they fit the same slide cut will lead to mounting issues. If your pistol slide is cut for an RMR pattern, you must choose a TSR1-M model.
If you purchase the Midas Burst (part number 403074) for an RMR cut, it will not seat without a dedicated adapter plate. Always verify whether your firearm slide or plate interface accepts a DeltaPoint mount or an RMR footprint before selecting a model.
What makes the closed Midas Burst different from open TSR1 models?
The Athlon Midas Burst TSR1 uses a closed red dot sight design, whereas standard models like the TSR1 403014A are open reflex sights. The closed housing encases the LED emitter between two lenses, which shields the projector from rain, dirt, and lint that could otherwise block the dot.
Open models feature a single forward lens and an exposed emitter behind it, offering a lower profile but requiring occasional maintenance to keep the emitter pocket free of debris. The closed Midas Burst also lists fully multi-coated glass and an integrated motion sensor as standard features.
Should you choose the 3 MOA or 6 MOA reticle option?
Choose the 3 MOA reticle if your primary focus is distant target precision, and choose the 6 MOA reticle if your priority is fast dot acquisition at close range. The smaller 3 MOA dot obscures less of your target, which helps when shooting tight groupings or aiming at smaller steel targets.
A 6 MOA dot provides a bolder visual reference that is easier to track under rapid fire or defensive drills. Athlon offers the RMR-pattern TSR1-M in both 3 MOA (model 403017) and 6 MOA (model 403017A), while the closed Midas Burst TSR1 is configured with a 3 MOA dot.
Which Athlon Midas TSR1 part numbers match an RMR slide cut?
Part numbers 403017 and 403017A are the two Athlon Midas TSR1-M models manufactured with an RMR footprint. Model 403017 features a 3 MOA dot, while model 403017A provides a 6 MOA dot.
Do not order model 403014A or model 403074 if you need direct RMR screw and lug alignment. Checking the specific manufacturer part number on the packaging is the most reliable way to avoid receiving the DeltaPoint mount version by mistake.
What battery life and illumination features does the Midas Burst TSR1 provide?
The Athlon Midas Burst TSR1 (model 403074) provides a 50,000 hour battery rating supported by an internal motion sensor. The motion sensor manages illumination efficiency by waking the 3 MOA red dot when the firearm moves and powering down when it remains idle.
This design preserves battery capacity without requiring manual brightness cycling each time you stage the firearm. The optic also incorporates fully multi-coated glass to maintain clean sight picture clarity through both protective windows.
How do you sight in an Athlon Midas red dot after mounting it?
Once you verify that your mounting screws are torqued down securely to your slide or adapter plate, establish your zero using systematic windage and elevation adjustments at a set distance. Rushing the process without a plan often leads to wasted rounds and drifting adjustments.
Review our walkthrough on how to zero a pistol red dot sight in 20 rounds to dial in your dot quickly at the range. If you mount an open TSR1 model on a carbine or shotgun rail instead, follow the steps in how to zero a reflex sight without wasting ammo to align your reticle with minimal ammunition expenditure.




















