Home / Optics / Holosun 507K X2

What pistols fit the Holosun 507K X2?

It uses the Holosun K footprint, which means it mounts to 144 of the 178 slides tracked here, 60 of them with no adapter plate.

Pistols that fit144 of 178

No plate to buy60

FootprintHolosun K

EmitterOpen

Window19.5 × 14.7 mm

Dot options2 MOA + 32 MOA circle

Weight1.0 oz

BatteryCR1632, side-load

Screws#6-32

Torque15 in-lb

Street price$300–450

Sight co-witnessDepends on your front sight height, which varies by SKU and production run even within one model name. With standard-height irons: no co-witness. With suppressor-height irons: normally a lower-third co-witness on a direct cut.

Holosun K footprintA subset of RMSc: K optics drop onto RMSc cuts, but a K-only cut has no rear posts for an RMSc optic to index on. Screw thread differs from Shield's M4 — check what shipped in the box.

Where to buy

Holosun — this item

Every pistol, and how it mounts

Item	Footprint	How it mounts	Cost to mount
Direct — 4
CZ P-07 Nocturne	CZ Nocturne direct cut	direct — no adapter	$300–450
CZ P-09 Nocturne / P-09C Nocturne	CZ Nocturne direct cut	direct — no adapter	$300–450
CZ Shadow 2 Carry	CZ Nocturne direct cut	direct — no adapter	$300–450
GLOCK 43X / 48 MOS-K	GLOCK Slimline MOS-K	direct — no adapter	$300–450
Direct · alt — 56
Archon Firearms Type B / Type D OR	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Avidity Arms PD10	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Beretta APX A1 Carry	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Bersa BP9CC OR	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Canik METE MC9 / MC9L	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Canik METE MC9 Prime	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Canik METE SF	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Canik METE SFT	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Canik METE SFT Pro	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Canik METE SFx	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
FN Reflex MRD	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Girsan Witness2311	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
GLOCK 43X / 48 Rail MOS	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
GLOCK 43X MOS	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
GLOCK 48 MOS	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
IWI Masada Slim	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Mossberg MC2sc Optic Ready	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Palmetto State Armory 5.7 Rock Optics Ready	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Palmetto State Armory Dagger Micro	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Rock Island Armory STK100	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Ruger MAX-9	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Ruger Ruger-5.7 Optics Ready	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
SCCY CPX RDR / DVG-1 RDR	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Shadow Systems CR920 / CR920P	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
SIG Sauer P322 / P322 Comp	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
SIG Sauer P365 Fuse	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
SIG Sauer P365 Optics Ready	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
SIG Sauer P365-380	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
SIG Sauer P365-AXG Legion	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
SIG Sauer P365-XMACRO / XMACRO Comp	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
SIG Sauer P365X	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
SIG Sauer P365XL	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Smith & Wesson CSX E-Series Optics Ready	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Smith & Wesson M&P 22 Magnum	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Smith & Wesson M&P 5.7	S&W M&P 5.7 direct cut	direct — no adapter	$300–450
Smith & Wesson M&P Equalizer	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Smith & Wesson M&P Shield M2.0 Optics Ready	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Smith & Wesson M&P Shield Plus Carry Comp	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Smith & Wesson M&P Shield Plus Optics Ready	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Springfield Armory Echelon	Springfield Echelon VIS	direct — no adapter	$300–450
Springfield Armory Echelon 4.0C	Springfield Echelon VIS	direct — no adapter	$300–450
Springfield Armory Echelon Compact 4.5C	Springfield Echelon VIS	direct — no adapter	$300–450
Springfield Armory Hellcat OSP	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Springfield Armory Hellcat Pro	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Springfield Armory Hellcat Pro Comp OSP	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Springfield Armory Hellcat RDP	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Springfield Armory XD-S Mod.2 OSP	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Staccato CS	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Stoeger STR-9MC	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Taurus Defender 856 TORO	Taurus 856 T.O.R.O. revolver cut	direct — no adapter	$300–450
Taurus GX4 Carry TORO	Taurus GX4 T.O.R.O. direct cut	direct — no adapter	$300–450
Taurus GX4 Graphene TORO	Taurus GX4 T.O.R.O. direct cut	direct — no adapter	$300–450
Taurus GX4 TORO / GX4XL	Taurus GX4 T.O.R.O. direct cut	direct — no adapter	$300–450
Taurus Judge TORO / Raging Hunter	Taurus Judge T.O.R.O. revolver cut	direct — no adapter	$300–450
Taurus TX22 Compact	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Tisas Carry DS / Duty DS	GLOCK Slimline MOS (43X / 48)	direct — no adapter	$300–450
Plate — 84
1911 / 2011 Non-optics-ready slide	Rear-sight dovetail mount	plate: Dovetail mount → Holosun K	$335–535
Arex Delta Gen.2	Arex Delta Gen.2 plate system	plate: Delta Gen.2 optic plate — type 5	$325–510
Beretta 80X Cheetah	Beretta 80X Cheetah plate system	plate: 80X Cheetah → Holosun K	$325–510
Beretta 92FS / M9 (no optic cut)	Rear-sight dovetail mount	plate: Dovetail mount → Holosun K	$335–535
Canik SFx Rival / Rival-S	Canik optic plate system	plate: Canik → Holosun K / EPS	$325–510
Canik TP9 Elite SC	Canik optic plate system	plate: Canik → Holosun K / EPS	$325–510
Canik TP9 SFx	Canik optic plate system	plate: Canik → Holosun K / EPS	$325–510
Canik TTI Combat	Canik optic plate system	plate: Canik → Holosun K / EPS	$325–510
Canik TTI Combat Master	Canik optic plate system	plate: Canik → Holosun K / EPS	$325–510
CZ 75 / SP-01 / Shadow 2 (non-OR)	Rear-sight dovetail mount	plate: Dovetail mount → Holosun K	$335–535
CZ P-07 / P-09 (standard, no optic cut)	Rear-sight dovetail mount	plate: Dovetail mount → Holosun K	$335–535
CZ P-10 C Optics Ready	CZ P-10 OR plate system	plate: P-10 OR → Holosun K / EPS	$325–510
CZ P-10 F Optics Ready	CZ P-10 OR plate system	plate: P-10 OR → Holosun K / EPS	$325–510
CZ P-10 S Optics Ready	CZ P-10 OR plate system	plate: P-10 OR → Holosun K / EPS	$325–510
FN 509 CC Edge	FN MRD plate system	plate: FN MRD → Holosun K / EPS	$325–510
FN 509 LS Edge	FN MRD plate system	plate: FN MRD → Holosun K / EPS	$325–510
FN 509 Midsize MRD / Compact MRD	FN MRD plate system	plate: FN MRD → Holosun K / EPS	$325–510
FN 509 MRD / Tactical	FN MRD plate system	plate: FN MRD → Holosun K / EPS	$325–510
FN 510 / 545 MRD	FN MRD plate system	plate: FN MRD → Holosun K / EPS	$325–510
GLOCK 17 / 19 (non-MOS, no optic cut)	Rear-sight dovetail mount	plate: Dovetail mount → Holosun K	$335–535
GLOCK 17 / 19 / 34 Gen4 MOS	GLOCK MOS — standard & full size	plate: V4 MIL/LEO (per-footprint SKU)	$325–510
GLOCK 17 Gen5 MOS	GLOCK MOS — standard & full size	plate: V4 MIL/LEO (per-footprint SKU)	$325–510
GLOCK 19 Gen5 MOS	GLOCK MOS — standard & full size	plate: V4 MIL/LEO (per-footprint SKU)	$325–510
GLOCK 19X MOS	GLOCK MOS — standard & full size	plate: V4 MIL/LEO (per-footprint SKU)	$325–510
GLOCK 20 Gen5 MOS (10 mm)	GLOCK MOS — 10 mm / .45 frames	plate: V4 MIL/LEO (large frame)	$325–510
GLOCK 21 Gen5 MOS (.45)	GLOCK MOS — 10 mm / .45 frames	plate: V4 MIL/LEO (large frame)	$325–510
GLOCK 22 / 23 Gen5 MOS (.40)	GLOCK MOS — standard & full size	plate: V4 MIL/LEO (per-footprint SKU)	$325–510
GLOCK 26 Gen5 MOS	GLOCK MOS — standard & full size	plate: V4 MIL/LEO (per-footprint SKU)	$325–510
GLOCK 34 Gen5 MOS	GLOCK MOS — standard & full size	plate: V4 MIL/LEO (per-footprint SKU)	$325–510
GLOCK 35 Gen5 MOS (.40)	GLOCK MOS — standard & full size	plate: V4 MIL/LEO (per-footprint SKU)	$325–510
GLOCK 40 MOS (10 mm)	GLOCK MOS — 10 mm / .45 frames	plate: V4 MIL/LEO (large frame)	$325–510
GLOCK 41 MOS (.45)	GLOCK MOS — 10 mm / .45 frames	plate: V4 MIL/LEO (large frame)	$325–510
GLOCK 44 MOS (.22 LR)	GLOCK MOS — standard & full size	plate: V4 MIL/LEO (per-footprint SKU)	$325–510
GLOCK 45 Gen5 MOS	GLOCK MOS — standard & full size	plate: V4 MIL/LEO (per-footprint SKU)	$325–510
GLOCK 47 Gen5 MOS	GLOCK MOS — standard & full size	plate: V4 MIL/LEO (per-footprint SKU)	$325–510
GLOCK 49 Gen5 MOS	GLOCK MOS — standard & full size	plate: V4 MIL/LEO (per-footprint SKU)	$325–510
Heckler & Koch SFP9 OR (European VP9)	HK VP9 / SFP9 OR plate system	plate: VP9 / SFP9 → Holosun K	$325–510
Heckler & Koch VP9 Match OR	HK VP9 / SFP9 OR plate system	plate: VP9 / SFP9 → Holosun K	$325–510
Heckler & Koch VP9 Optics Ready	HK VP9 / SFP9 OR plate system	plate: VP9 / SFP9 → Holosun K	$325–510
Heckler & Koch VP9SK Optics Ready	HK VP9 / SFP9 OR plate system	plate: VP9 / SFP9 → Holosun K	$325–510
Kimber KDS9c	Kimber KDS9c plate system	plate: KDS9c → RMSc / Holosun K (incl. rear sight)	$325–510
Kimber R7 Mako	Kimber R7 Mako plate system	plate: R7 Mako → Holosun 407K / 507K / Osight S	$325–510
Ruger RXM	Ruger RXM optic cut	plate: RXM → RMSc / Holosun K	$325–510
Ruger RXM Compact	Ruger RXM optic cut	plate: RXM → RMSc / Holosun K	$325–510
Shadow Systems DR920 / DR920P	Shadow Systems optic plate system	plate: SS → Holosun K / EPS	$325–510
Shadow Systems Foundation Series	Shadow Systems optic plate system	plate: SS → Holosun K / EPS	$325–510
Shadow Systems MR920	Shadow Systems optic plate system	plate: SS → Holosun K / EPS	$325–510
Shadow Systems MR920 Elite / Combat	Shadow Systems optic plate system	plate: SS → Holosun K / EPS	$325–510
Shadow Systems XR920 / XR920P	Shadow Systems optic plate system	plate: SS → Holosun K / EPS	$325–510
SIG Sauer P226 / P229 (non-RX, no optic cut)	Rear-sight dovetail mount	plate: Dovetail mount → Holosun K	$335–535
SIG Sauer P320 AXG Legion / AXG Pro	SIG P320 optic cut (Romeo1Pro pattern)	plate: P320 → Holosun K / EPS	$325–510
SIG Sauer P320 Spectre Comp	SIG P320 optic cut (Romeo1Pro pattern)	plate: P320 → Holosun K / EPS	$325–510
SIG Sauer P320 X-Carry	SIG P320 optic cut (Romeo1Pro pattern)	plate: P320 → Holosun K / EPS	$325–510
SIG Sauer P320 XCompact	SIG P320 optic cut (Romeo1Pro pattern)	plate: P320 → Holosun K / EPS	$325–510
SIG Sauer P320 XFive Legion	SIG P320 optic cut (Romeo1Pro pattern)	plate: P320 → Holosun K / EPS	$325–510
SIG Sauer P320 XTen	SIG P320 optic cut (Romeo1Pro pattern)	plate: P320 → Holosun K / EPS	$325–510
SIG Sauer P320-M17 / M18	SIG P320 optic cut (Romeo1Pro pattern)	plate: P320 → Holosun K / EPS	$325–510
Smith & Wesson M&P Carry Comp	S&W M&P C.O.R.E. / Optics Ready	plate: M&P 2.0 → Holosun K	$325–510
Smith & Wesson M&P Competitor	S&W M&P C.O.R.E. / Optics Ready	plate: M&P 2.0 → Holosun K	$325–510
Smith & Wesson M&P10mm M2.0 Optics Ready	S&W M&P C.O.R.E. / Optics Ready	plate: M&P 2.0 → Holosun K	$325–510
Smith & Wesson M&P9 C.O.R.E. (pre-M2.0)	S&W M&P C.O.R.E. / Optics Ready	plate: M&P 2.0 → Holosun K	$325–510
Smith & Wesson M&P9 M2.0 (non-OR, no optic cut)	Rear-sight dovetail mount	plate: Dovetail mount → Holosun K	$335–535
Smith & Wesson M&P9 M2.0 Compact Optics Ready	S&W M&P C.O.R.E. / Optics Ready	plate: M&P 2.0 → Holosun K	$325–510
Smith & Wesson M&P9 M2.0 Metal	S&W M&P C.O.R.E. / Optics Ready	plate: M&P 2.0 → Holosun K	$325–510
Smith & Wesson M&P9 M2.0 Optics Ready (4.25 / 4.6 / 5 in)	S&W M&P C.O.R.E. / Optics Ready	plate: M&P 2.0 → Holosun K	$325–510
Smith & Wesson Performance Center M&P9 M2.0 Metal / Spec Series	S&W M&P C.O.R.E. / Optics Ready	plate: M&P 2.0 → Holosun K	$325–510
Springfield Armory 1911 DS Operator AOS	Springfield AOS	plate: AOS → Holosun K / EPS	$325–510
Springfield Armory Prodigy (1911 DS)	Springfield AOS	plate: AOS → Holosun K / EPS	$325–510
Springfield Armory XD-M Elite OSP	Springfield AOS	plate: AOS → Holosun K / EPS	$325–510
Staccato C2	Staccato / 2011 optic plate system	plate: Staccato → Holosun K / EPS	$325–510
Staccato P	Staccato / 2011 optic plate system	plate: Staccato → Holosun K / EPS	$325–510
Staccato XC	Staccato / 2011 optic plate system	plate: Staccato → Holosun K / EPS	$325–510
Staccato XL	Staccato / 2011 optic plate system	plate: Staccato → Holosun K / EPS	$325–510
Taurus G3 TORO / G3X TORO	Taurus T.O.R.O. plate system	plate: T.O.R.O. → Holosun 407K / 507K	$325–510
Taurus G3C TORO / G3X TORO	Taurus T.O.R.O. plate system	plate: T.O.R.O. → Holosun 407K / 507K	$325–510
Walther PDP 2.0 Compact	Walther PDP 2.0 optic cut	plate: PDP 2.0 → Holosun K / EPS	$325–510
Walther PDP 2.0 Full Size	Walther PDP 2.0 optic cut	plate: PDP 2.0 → Holosun K / EPS	$325–510
Walther PDP Compact (1.0)	Walther PDP 1.0 optic cut	plate: PDP 1.0 → Holosun K / EPS	$325–510
Walther PDP Compact F-Series	Walther PDP 1.0 optic cut	plate: PDP 1.0 → Holosun K / EPS	$325–510
Walther PDP F-Series	Walther PDP 1.0 optic cut	plate: PDP 1.0 → Holosun K / EPS	$325–510
Walther PDP Full Size (1.0)	Walther PDP 1.0 optic cut	plate: PDP 1.0 → Holosun K / EPS	$325–510
Walther PDP Pro	Walther PDP 1.0 optic cut	plate: PDP 1.0 → Holosun K / EPS	$325–510
Walther PDP Pro SD	Walther PDP 1.0 optic cut	plate: PDP 1.0 → Holosun K / EPS	$325–510
Walther PDP Steel Frame	Walther PDP 1.0 optic cut	plate: PDP 1.0 → Holosun K / EPS	$325–510
No fit — 34
Any pistol No factory optic cut — custom mill required	No factory optic provision	no known route	$300–450
Arex Zero 1 Tactical	Arex Zero 1 Tactical ROR plate system	no known route	$300–450
Beretta 92 GTS	Beretta 92X / M9A4 plate system	no known route	$300–450
Beretta 92FS X Performance OR	Beretta 92X / M9A4 plate system	no known route	$300–450
Beretta 92X / 92XI / 92XI SAO	Beretta 92X / M9A4 plate system	no known route	$300–450
Beretta 92X RDO	Beretta 92X / M9A4 plate system	no known route	$300–450
Beretta 92XI Squalo	Beretta 92X / M9A4 plate system	no known route	$300–450
Beretta 94X Performance	Beretta 92X / M9A4 plate system	no known route	$300–450
Beretta APX A1 Compact	Beretta APX A1 / APX RDO plate system	no known route	$300–450
Beretta APX A1 Full Size	Beretta APX A1 / APX RDO plate system	no known route	$300–450
Beretta APX RDO	Beretta APX A1 / APX RDO plate system	no known route	$300–450
Beretta M9A4	Beretta 92X / M9A4 plate system	no known route	$300–450
CZ Shadow 2 Compact Optics Ready	CZ Shadow 2 OR plate system	no known route	$300–450
CZ Shadow 2 Optics Ready	CZ Shadow 2 OR plate system	no known route	$300–450
GLOCK 17 / 19 / 45 Gen6 (ORS)	GLOCK Gen6 ORS	no known route	$300–450
GLOCK 17 / 19 / 45 Gen6 A-Cut	Aimpoint A-Cut	no known route	$300–450
Palmetto State Armory Dagger Full Size / Compact (RMR cut)	PSA Dagger RMR cut	no known route	$300–450
Rost Martin RM1C	Rost Martin metal optic plate system	no known route	$300–450
Rost Martin RM1S	Plate system — fitment not published	no known route	$300–450
Ruger American Pistol Competition	Plate system — fitment not published	no known route	$300–450
SIG Sauer P226 / P229 Legion RX	SIG Romeo1 cut (P226 / P229 RX Legion)	no known route	$300–450
SIG Sauer P320 Full-Size / Carry (SIG-LOC PRO slide)	SIG-LOC PRO slide — P320	no known route	$300–450
SIG Sauer P320-M17 / M18 (SIG-LOC slide)	SIG-LOC slide — M17 / M18	no known route	$300–450
SIG Sauer P365X / P365-XL / P365-AXG Legion (SIG-LOC slide)	SIG-LOC slide — P365	no known route	$300–450
Smith & Wesson M&P9 M2.0 Metal with Aimpoint ACRO Cut	S&W M&P ACRO direct cut	no known route	$300–450
Springfield Armory 1911 DS Prodigy 4.25in COA	Aimpoint A-Cut	no known route	$300–450
Springfield Armory 1911 Operator .45 COA	Aimpoint A-Cut	no known route	$300–450
Springfield Armory 1911 TRP .45 COA	Aimpoint A-Cut	no known route	$300–450
Springfield Armory Echelon 4.0C COA	Aimpoint A-Cut	no known route	$300–450
Springfield Armory Echelon 4.0FC COA	Aimpoint A-Cut	no known route	$300–450
Springfield Armory Echelon 4.5F COA	Aimpoint A-Cut	no known route	$300–450
Walther Q4 SF Optics Ready	Walther Q4 SF / Q5 Match SF optic cut	no known route	$300–450
Walther Q5 Match SF	Walther Q4 SF / Q5 Match SF optic cut	no known route	$300–450
Walther WMP	Plate system — fitment not published	no known route	$300–450

Build one

The fit checker opens with this optic already selected and will produce a build sheet for it on any of those pistols — the plate SKU, which bag each screw comes from, torque figures and the install order. Each "how it mounts" cell above links straight to that pairing.

Something on this page wrong? Say what it should be. Corrections from someone who owns the pistol are why this is worth more than a spec sheet — and nothing here changes without a source, so bring one.