Heckler & Koch MR556A1

OpticEOTech EXPS3
- Rifle
- Heckler & Koch MR556A1
- Caliber
- 5.56x45mm NATO
- Optic
- EOTech EXPS3 / Aimpoint PRO (Patrol Rifle Optic) / Aimpoint Micro T-2
- Light
- Not yet sourced
Issued duty weapons, ammunition and attachments, from public sources. Every entry is dated and confidence-rated.
Duty Arms Index1,182 agencies2,608 sourced entriesUpdated Oct 10, 2026How we source


Representative photo: HK MR223 (the European version of the MR556A1), privately owned, with an EOTech sight. Photo: Code16, CC BY-SA 4.0, via Wikimedia Commons (cropped). Model photo, not the agency's own firearm.
EOTech EXPS3-0 in tan, with a G33 magnifier behind it, on an HK G95 rifle. Photo: Engelhardt A (IEA Mil Optics GmbH), CC BY-SA 4.0, via Wikimedia Commons (cropped). Model photo, not the agency's own equipment.
The Lawrence Police Department (Kansas)'s current patrol rifle is the Heckler & Koch MR556A1 (5.56x45mm NATO), with an EOTech EXPS3 optic, per official agency or government records; based on a 2023 source and not re-verified since.
| Category | Current primary issue | Confidence | Entries |
|---|---|---|---|
| Pistols | Not yet sourced | — | |
| Rifles / Carbines | Heckler & Koch MR556A1Who else issues it → | Official source | 1 |
| Shotguns | Not yet sourced | — | |
| Precision / Sniper Rifles | Not yet sourced | — | |
| SMGs / Pistol-Caliber Carbines | Not yet sourced | — | |
| Duty Ammunition | Not yet sourced | — |
How the current duty weapons are configured, per the sourced entries below. Optic and light models are shown only when a source names them.



Representative photo: HK MR223 (the European version of the MR556A1), privately owned, with an EOTech sight. Photo: Code16, CC BY-SA 4.0, via Wikimedia Commons (cropped). Model photo, not the agency's own firearm.
| Dates | Apr 11, 2023 – present |
|---|---|
| Attachments | Optic: EOTech EXPS3 ![]() EOTech EXPS3-0 in tan, with a G33 magnifier behind it, on an HK G95 rifle. Photo: Engelhardt A (IEA Mil Optics GmbH), CC BY-SA 4.0, via Wikimedia Commons (cropped). Model photo, not the agency's own firearm. Optic: Aimpoint PRO (Patrol Rifle Optic) ![]() Representative photo: Aimpoint CompM4 (the PRO is Aimpoint's similar tube-style patrol rifle optic). Photo: Photo Courtesy of PEO Soldier, Public domain, via Wikimedia Commons. Model photo, not the agency's own firearm. Optic: Aimpoint Micro T-2 ![]() Representative photo: Aimpoint Micro T-1 (the Micro T-2 is its successor in the same housing). Photo: NobuttoO, CC BY-SA 4.0, via Wikimedia Commons. Model photo, not the agency's own firearm. |
| As of | Oct 9, 2026 |
City Commission agenda item, April 11, 2023 (RFQ 2300012).
HK MR556A1 (16.5-inch) patrol rifles bought in 2023 through the department's member-ownership program: the city buys the rifles and officers repay the cost by payroll deduction. Officers choose one of two department-approved platforms; the HK is the one named in this purchase. Current status not re-verified.
Know of a public source (policy manual, contract, press release, news)? Submit it.
No previous-issue history recorded yet.
Agency-level equipment only, from public sources. No individual officers, no unit specifics beyond what the agency has published. Not affiliated with Lawrence Police Department (Kansas). Agency listing source: link.