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Moving the Burris FastFire 4 between pistols

Page last updated . Data compiled September 2026 by the site administrator.

You already own it. Here is what changes from one slide to the next: the plate, the screw thread at each joint, the torque, the tools and any thread trap. 21 kinds of slide, covering 78 pistols, grouped by how the optic mounts and then alphabetically. Nothing is ranked. The Burris FastFire 4 page has its specs and the per-pair answers.

The screws are not the same on every slideAcross these slides the optic's screws go into 3 different threads (#4-40, 4-40, M3), and the screws from one pistol's box are often wrong for the next. Check the thread for the slide in front of you, and start every screw by hand.

20 of the 21 blocks have a figure marked not on file: no maker publishes it where this site could find it, so the plate maker or a gunsmith is the source. How the data is checked.

Mounts on a plate

Arex Delta Gen.2 plate system

Plate Adapter plate required

Slide: Arex Delta Gen.2

Plate
Delta Gen.2 optic plate — type 1Aftermarket
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereSupplied with the plate, not the optic.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$175–360approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

Arex Zero 1 Tactical ROR plate system

Plate Adapter plate required

Slide: Arex Zero 1 Tactical

Plate
Zero 1 Tactical ROR plate — Docter / Insight / Meopta / VortexAftermarket
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereSupplied with the plate, not the optic.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$175–360approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

Beretta 92X / M9A4 plate system

Plate Adapter plate required

7 slides: Beretta 92X RDO, Beretta 92X / 92XI / 92XI SAO, Beretta 92XI Squalo, Beretta 92 GTS, Beretta M9A4, Beretta 92FS X Performance OR, Beretta 94X Performance

Plate
92X / M9A4 → Docter / VenomBeretta factory; 1 other plate on the pair pages
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereSupplied with the plate, not the optic.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$175–360approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

Beretta APX A1 / APX RDO plate system

Plate Adapter plate required

3 slides: Beretta APX A1 Full Size, Beretta APX A1 Compact, Beretta APX RDO

Plate
Universal type FOptics Spot
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereSupplied with the plate, not the optic.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$175–360approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

Canik optic plate system

Plate Fits on the plate in the box

5 slides: Canik TP9 Elite SC, Canik TP9 SFx, Canik SFx Rival / Rival-S, Canik TTI Combat, Canik TTI Combat Master

Plate
Canik kit → DocterCanik factory, ships with the pistol
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereLook in the pistol's box, with the plates. If there are none, buy a pair made for this plate.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$150–300approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

CZ P-10 OR plate system

Plate Fits on the plate in the box

3 slides: CZ P-10 C Optics Ready, CZ P-10 F Optics Ready, CZ P-10 S Optics Ready

Plate
P-10 OR → DocterCZ factory, ships with the pistol
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereLook in the pistol's box, with the plates. If there are none, buy a pair made for this plate.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$150–300approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

CZ Shadow 2 OR plate system

Plate Fits on the plate in the box

2 slides: CZ Shadow 2 Optics Ready, CZ Shadow 2 Compact Optics Ready

Plate
Shadow 2 OR → DocterCZ factory, ships with the pistol
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereLook in the pistol's box, with the plates. If there are none, buy a pair made for this plate.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$150–300approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

FN MRD plate system

Plate Fits on the plate in the box

5 slides: FN 509 MRD / Tactical, FN 509 Midsize MRD / Compact MRD, FN 509 LS Edge, FN 510 / 545 MRD, FN 509 CC Edge

Plate
FN MRD → DocterFN factory, ships with the pistol
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereLook in the pistol's box, with the plates. If there are none, buy a pair made for this plate.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$150–300approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

GLOCK MOS — 10 mm / .45 frames

Plate Adapter plate required

4 slides: GLOCK 20 Gen5 MOS (10 mm), GLOCK 21 Gen5 MOS (.45), GLOCK 40 MOS (10 mm), GLOCK 41 MOS (.45)

Plate
MOS Plate 05GLOCK factory
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereSupplied with the plate, not the optic.
Plate torque
13.1 in-lb (1.5 Nm)
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$163–325approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

GLOCK MOS — standard & full size

Plate Adapter plate required

12 slides: GLOCK 19 Gen5 MOS, GLOCK 17 Gen5 MOS, GLOCK 45 Gen5 MOS, GLOCK 47 Gen5 MOS, GLOCK 49 Gen5 MOS, GLOCK 19X MOS, GLOCK 34 Gen5 MOS, GLOCK 26 Gen5 MOS, GLOCK 17 / 19 / 34 Gen4 MOS, GLOCK 22 / 23 Gen5 MOS (.40), GLOCK 35 Gen5 MOS (.40), GLOCK 44 MOS (.22 LR)

Plate
MOS Plate 01GLOCK factory; 1 other plate on the pair pages
Plate → slide
per plate maker, not on file hereSupplied with the pistol, in the box with the cover plate.
Optic → plate
per plate maker, not on file hereSupplied with the plate, not the optic.
Plate torque
13.1 in-lb (1.5 Nm)
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$163–325approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

HK VP9 / SFP9 OR plate system

Plate Adapter plate required

4 slides: Heckler & Koch VP9 Optics Ready, Heckler & Koch VP9 Match OR, Heckler & Koch VP9SK Optics Ready, Heckler & Koch SFP9 OR (European VP9)

Plate
VP9 / SFP9 → Docter / VenomEGW; 1 other plate on the pair pages
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereSupplied with the plate, not the optic.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$175–360approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

Plate system — fitment not published

Plate Verify Adapter plate required

3 slides: Walther WMP, Ruger American Pistol Competition, Rost Martin RM1S

Plate
Ask the maker → Docter familyUnconfirmed
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereSupplied with the plate, not the optic.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$175–360approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

PSA Dagger RMR cut

Plate Adapter plate required

Slide: Palmetto State Armory Dagger Full Size / Compact (RMR cut)

Plate
Dagger RMR → Docter / Venom / Viper / FastFireEGW
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereSupplied with the plate, not the optic.
Plate torque
per plate maker, not on file here
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$175–360approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

Rear-sight dovetail mount

Plate Dovetail mount required

2 slides: CZ P-07 / P-09 (standard, no optic cut), CZ 75 / SP-01 / Shadow 2 (non-OR)

Plate
Dovetail mount → RMR / C-More / Docter (type C)EGW
Mount → dovetail
set by the slideSupplied with the mount.
Optic → mount
M3 / #4-40 by modelSupplied with the plate, not the optic.
Plate torque
per mount instructions
Optic torque
15 in-lb
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Brass drift or sight pusher, Witness-mark paint or lacquer
To mount
$185–385approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

Rost Martin metal optic plate system

Plate Adapter plate required

Slide: Rost Martin RM1C

Plate
Docter / Noblex metal optic plateRost Martin
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereSupplied with the plate, not the optic.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$175–360approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

S&W M&P C.O.R.E. / Optics Ready

Plate Fits on the plate in the box

8 slides: Smith & Wesson M&P9 M2.0 Optics Ready (4.25 / 4.6 / 5 in), Smith & Wesson M&P9 M2.0 Compact Optics Ready, Smith & Wesson M&P9 M2.0 Metal, Smith & Wesson Performance Center M&P9 M2.0 Metal / Spec Series, Smith & Wesson M&P10mm M2.0 Optics Ready, Smith & Wesson M&P9 C.O.R.E. (pre-M2.0), Smith & Wesson M&P Carry Comp, Smith & Wesson M&P Competitor

Plate
Factory kit plate — Docter familyS&W factory, ships with the pistol
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereLook in the pistol's box, with the plates. If there are none, buy a pair made for this plate.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$150–300approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

Springfield Echelon VIS

Plate Adapter plate required

3 slides: Springfield Armory Echelon, Springfield Armory Echelon 4.0C, Springfield Armory Echelon Compact 4.5C

Plate
VIS → Docter adapterSpringfield factory
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereSupplied with the plate, not the optic.
Plate torque
per plate maker, not on file here
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Tweezers, Witness-mark paint or lacquer
To mount
$175–360approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

Taurus T.O.R.O. plate system

Plate Verify Adapter plate required

2 slides: Taurus G3 TORO / G3X TORO, Taurus G3C TORO / G3X TORO

Plate
T.O.R.O. Plate #1Taurus factory; 2 other plates on the pair pages
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereSupplied with the plate, not the optic.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$163–325approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

Walther PDP 1.0 optic cut

Plate Adapter plate required

7 slides: Walther PDP Full Size (1.0), Walther PDP Compact (1.0), Walther PDP F-Series, Walther PDP Pro SD, Walther PDP Pro, Walther PDP Steel Frame, Walther PDP Compact F-Series

Plate
PDP 1.0 → Docter / VenomWalther factory
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereSupplied with the plate, not the optic.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$175–360approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

Walther PDP 2.0 optic cut

Plate Adapter plate required

2 slides: Walther PDP 2.0 Full Size, Walther PDP 2.0 Compact

Plate
PDP 2.0 → Docter / VenomC&H Precision
Plate → slide
M3Supplied with the plate.
Optic → plate
4-40 (into the plate's T-nuts)Supplied with the plate, not the optic.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$175–360approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

Walther Q4 SF / Q5 Match SF optic cut

Plate Adapter plate required

2 slides: Walther Q5 Match SF, Walther Q4 SF Optics Ready

Plate
Q-series → Docter / VenomEGW; 1 other plate on the pair pages
Plate → slide
per plate maker, not on file hereSupplied with the plate.
Optic → plate
per plate maker, not on file hereSupplied with the plate, not the optic.
Plate torque
per plate instructions
Optic torque
per plate maker, not on file here (15 in-lb is the optic maker's figure for mounting it straight on a slide)
Tools
Torque wrench, Driver bits, Calipers, Degreaser, A parts tray, Witness-mark paint or lacquer
To mount
$175–360approximate street prices, September 2026
Thread trapDocter/Noblex optics vary: different makers on this footprint ship M3 and #4-40. Check what's in your box.

Steps and safety: installing a red dot, from the makers' manuals. Mounting an optic is gunsmithing; confirm the pistol is unloaded first. Screw length is never listed here because it depends on the whole stack: each pair's build sheet has a calculator that works from your own caliper readings.

Something on this page wrong? Tell us what it should be, and include a source: nothing changes without one.