The Reptilia SADDLE is a receiver-mounted optic mount for the Beretta 1301 and A300 shotguns, cut for the Holosun 509T footprint and low enough for a co-witness with the factory Beretta iron sights.
Same shotguns as the ACRO saddle, entirely different footprint. The 509T is an enclosed optic with its own mounting pattern, and this is the saddle machined for it.
Reptilia call it the lowest possible mounting solution for a miniature red dot using the Holosun HE509T footprint, allowing a low co-witness with the factory Beretta irons. It is machined from billet 7075-T6 aluminium in MIL-STD Type III hardcoat anodising and weighs 23 g (0.8 oz).
Compatible optics are the Holosun HS509T and the Holosun/Primary Arms HE509-RD with the ACSS Vulcan reticle — both the same enclosed housing, different reticles. A sealed emitter is a sensible choice on a shotgun that works in wet British conditions, because nothing outside the housing can dim the dot. Made in the USA.
Why shooters choose the SADDLE for Holosun 509T
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509T footprint — cut for the Holosun HS509T and HE509-RD ACSS Vulcan, not the ACRO pattern
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Mounts to the receiver — no rail section and no riser, so the optic sits as low as the shotgun allows
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Low co-witness — the factory Beretta iron sights remain visible through the optic window
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23 g (0.8 oz) — billet 7075-T6 aluminium in MIL-STD Type III hardcoat anodising
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Enclosed emitter — a sealed optic on a shotgun that lives outdoors, with nothing to foul the LED
What the SADDLE for Holosun 509T fits
Fits the Beretta 1301 and A300 line of shotguns, taking the Holosun HS509T and the Holosun/Primary Arms HE509-RD with the ACSS Vulcan reticle. This is the 509T version. If your optic is an Aimpoint ACRO or a Steiner MPS, you need the SADDLE for ACRO and MPS instead — same shotguns, different footprint, and the two will not swap. It will not fit any other shotgun.
Specifications
| Fits |
Beretta 1301 and A300 shotguns, with Holosun HS509T or HE509-RD ACSS Vulcan |
| Type |
Receiver-mounted red dot saddle — low co-witness with factory Beretta irons |
| Material |
Billet 7075-T6 aluminium |
| Finish |
MIL-STD Type III hardcoat anodised — Black |
| Weight |
23 g (0.8 oz) |
| Mount interface |
Beretta 1301 / A300 receiver |
| Made in |
USA |
| Brand |
Reptilia |
| MPN |
100-294 |
An enclosed dot, mounted as low as a 1301 allows. Order the SADDLE for Holosun 509T today — in stock at Xtreme Tactical Gun Parts with free tracked UK delivery in 7–10 days.
Explore more: Scope Mounts & Optic Risers, Iron Sights & Backup Sights or browse all Reptilia.
