Head to head

Holosun HE509T-X2-RD vs Aimpoint Acro P-2

By Cole Harlan, EditorUpdated Nov 5, 2026How we verifyEditorial standards

Both are enclosed 1x pistol red dots on different footprints: Holosun’s 509T footprint (with an RMR adapter plate included) and Aimpoint’s integrated Acro interface. Holosun lists a Grade 5 titanium housing and 1.27 oz; Aimpoint lists 61 g (2.2 oz) sight only and a 3.5 MOA dot. This is the two-way RD page; our three-way Acro P-2 vs EPS vs 509T uses the HE509T-X2-GD. Checked November 5, 2026.

At a glance

Spec (maker label)	Holosun HE509T-X2-RD	Aimpoint Acro P-2 (3.5 MOA)
Reticle	Multi-Reticle System: 2 MOA Dot & 32 MOA Circle (red)	Dot size 3.5 MOA
Magnification	1x	1x
Window	Window Size 0.66″ × 0.9″	Not yet verified (no window-size row on the listing)
Size	Body Dimensions 1.6″ × 1.16″ × 1.13″	Size L × W × H: 47 × 33 × 31 mm / 1.9 × 1.3 × 1.2 in
Weight	1.27 oz	61 g / 2.2 oz (sight only)
Battery	CR1632, side-loading tray	CR2032, 3V, Lithium
Battery life	50,000 Hours (Setting 6)	50,000 h at daylight setting 6 (15,000 Lux, room temperature); also “over 5 years”
Brightness settings	8 Daylight & 4 (NV)	NVD compatible: Yes
Housing	Grade 5 Titanium	High strength aluminum
Water	Submersion: IP67	Submersible to 35 meters (115 feet)
Vibration	5000G	Not yet verified
Transmission	Not yet verified	Average 70% in the range 420 – 900 nm
Extra features	Solar Failsafe & Shake Awake	—
Footprint / mounting	Direct Mount 509T Footprint; Included Adapter Plate: RMR to 509T	Acro™ interface; integrated Acro™ interface
Printed MSRP	Not shown here	Not yet verified
Source (checked Nov. 5, 2026)	holosun.com HE509T-X2-RD	aimpoint.com Acro P-2 3.5 MOA

Like for like: the two optics mount to different footprints, so they are not drop-in swaps on one slide cut. Holosun prints a Multi-Reticle System dot and circle while Aimpoint prints a 3.5 MOA dot, and the battery cells differ (CR1632 vs CR2032). Holosun’s brightness line reads “8 Daylight & 4 (NV)” in its electronic data block, and its page copy also mentions 12 settings; we show the data block. Aimpoint does not print a window-size row on this listing, so we show none. An IP code and a submersion depth are different kinds of statement, so we do not rank them. Weights are each maker’s own, sight only, and we compute no gap.

Which to pick (on paper)

If a dot-and-circle reticle matters: Holosun lists a 2 MOA dot with a 32 MOA circle; Aimpoint lists a single 3.5 MOA dot.
If the lowest printed weight matters: Holosun lists 1.27 oz against Aimpoint’s 61 g (2.2 oz) sight only.
If a stated submersion depth matters: Aimpoint prints 35 meters (115 feet); Holosun prints IP67 and no depth.
If your slide is cut for a particular footprint: Holosun ships on the 509T footprint with an RMR-to-509T plate; Aimpoint uses the integrated Acro interface.
If a titanium housing matters: Holosun lists Grade 5 titanium; Aimpoint lists high strength aluminum.

We have not range-tested these; facts above are from the makers.

Not yet verified

An Acro P-2 window size, vibration rating and printed MSRP on the listing we read, and light transmission on the Holosun page.
Any price comparison; we show none.

Frequently asked questions

What reticle does the HE509T-X2-RD list?

Holosun lists a Multi-Reticle System with a 2 MOA dot and a 32 MOA circle (red). Aimpoint lists a 3.5 MOA dot for the Acro P-2.

How much do they weigh?

Holosun lists 1.27 oz for the HE509T-X2-RD. Aimpoint lists 61 g (2.2 oz), sight only, for the Acro P-2.

Do they share a footprint?

Not on paper. Holosun lists the 509T footprint with an included RMR-to-509T adapter plate; Aimpoint lists its integrated Acro interface.

Holosun HE509T-X2-RD vs Aimpoint Acro P-2

At a glance

Which to pick (on paper)

Not yet verified

Frequently asked questions

Sources

Keep exploring

At a glance

Which to pick (on paper)

Not yet verified

Frequently asked questions

Sources

Keep exploring

The Gun Release Report