LPA TXT0407-F1 Sight Set for S&W Revolver – Black Rear Sight / Red Fiber Front Sight

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LPA TXT0407-F1 BLACK BAS is an adjustable revolver sight set for 629, 686, 586, 627, 66, 67, 696, 17, 19, 657, 610, 625, 29, 27 and now for caliber .50. TXT series, sight picture Black sight picture and scope of delivery Sight set with rear sight and front sight are the decisive purchase features.

This page does not describe a universal sight. LPA assigns each SKU to a specific firearm/milling or frame mount. Only when this mechanical counterpart matches do sight picture and micrometer adjustment become relevant.

What is this LPA sight?
Product classification: Revolver sight, usable as a matched sight set.
System chain: 629, 686, 586, 627, 66, 67, 696, 17, 19, 657, 610, 625, 29, 27 and now for caliber .50 → confirmed rear sight/frame mount → LPA TXT0407-F1 BLACK BAS → supplied front sight → sight picture Black sight picture → controlled zero point.


LPA code: TXT0407-F1 BLACK BAS

Series: TXT

Compatibility: 629, 686, 586, 627, 66, 67, 696, 17, 19, 657, 610, 625, 29, 27 and now for caliber .50

Scope: Sight set with rear sight and front sight

Sight picture: Black sight picture

Adjustment: Height and windage according to series/source description

What distinguishes the LPA-TXT series
Adjustable S&W revolver sight for the confirmed drilled and threaded frames. Screw-mounted sight base; depending on SKU as rear sight or sight set with hook-in fiber optic front sight.
TXT replaces the existing S&W revolver sight on the prepared frame. Set variants may include a hook-in fiber optic front sight; rear-only variants do not.
One adjustment corrects the point of impact within its mechanical range. It does not compensate for crookedly pressed-in rear sight, incorrect front sight height, or unsuitable firearm mount.

Sight picture Black sight picture
A black sight picture prioritizes clear contours of rear sight notch and front sight. It offers no additional luminous or fiber reference and depends especially on clean contrast between sight and target image.
Practical consequence: Keep front sight and rear sight free of reflections and clean. With a dark target background, a bright target or adjusted lighting can help more than a changed sight adjustment.
The sight picture changes perception, not mechanical compatibility. TXT0407-F1 BLACK BAS remains tied to the series, firearm mount, and scope of delivery of this SKU.

Four decisions before ordering


Firearm and mount: The designation 629, 686, 586, 627, 66, 67, 696, 17, 19, 657, 610, 625, 29, 27 and now for caliber .50 must match the actual rear sight/frame mount.

Exact version: TXT0407-F1 BLACK BAS stands for TXT series with sight picture Black sight picture. A different end code can change scope of delivery or contrast image.

Rear sight and front sight: Rear sight and front sight belong together with this SKU; both determine sight height and sight picture.

Mounting limit: The frame must have the confirmed drilling pattern and matching threads; additionally, the exchange height of 10-10.5 mm must be maintained.

Only when these four points match is the LPA micrometer adjustment a usable advantage. a reduced black
es Match sight picture without luminous inserts is a matter of the chosen sight picture; mechanical fit cannot be replaced by this. If you are undecided between two visually similar variants, you should first clarify the manufacturer code and mounting and only then decide between black, dots, white outline, fiber optic, or luminova.

Compatibility without abbreviation
LPA TXT0407-F1 BLACK BAS fits exclusively to the confirmed counterpart 629, 686, 586, 627, 66, 67, 696, 17, 19, 657, 610, 625, 29, 27 and newly for caliber .50. Manufacturer name and similar model number are not sufficient. Slide revision, year of manufacture, factory sight, optics-ready version, or already performed milling work can change the mounting.
The code TXT0407-F1 BLACK BAS is the most precise assignment on this page. When matching with packaging, LPA documents, or existing rear sight, use this code and not just the series designation TXT.
This SKU includes rear sight and front sight together. The components form a coordinated height and sight picture system.

Installation and mechanical fit
The source describes a screw mounting on the prepared frame. The total height of the rear sight to be replaced must be 10-10.5 mm.
The source does not confirm universal mounting without adjustment. Before pressing in, check the mounting, direction, and dimensions professionally.
Take mounting direction and support surfaces from the firearm/LPA manual; do not guess based on the previous disassembly direction.
Do not install the sight with uncontrolled hammer blows. A suitable sight pusher or professional clamping and support tools distribute the force on the intended surfaces. Completely unload slide or frame and remove according to firearm manual before working on the sight mounting.
Rear sight and front sight belong together as a height pair in this SKU. Install both components and only then assess the usable adjustment range.

Our assessment
LPA TXT0407-F1 BLACK BAS is suitable for shooters who want to build a mechanically adjustable sight with a reduced black match sight picture without luminous inserts exactly on 629, 686, 586, 627, 66, 67, 696, 17, 19, 657, 610, 625, 29, 27 and newly for caliber .50.
Do not buy if frame preparation and height of the rear sight to be replaced do not match the confirmed specifications. Also unsuitable if you need a highlighted fiber/luminova or dot reference in low light or if the existing mounting does not clearly match TXT0407-F1 BLACK BAS.

Black-Raptor short summary: Buy if: LPA code, firearm model/cut, scope of delivery, and desired sight picture fully match. Do not buy if: only manufacturer name or a similar-looking dovetail serves as proof of fit.

Product-specific practical tips

Practical tip: Read compatibility up to milling TXT0407-F1 BLACK BAS is intended for 629, 686, 586, 627, 66, 67, 696, 17, 19, 657, 610, 625, 29, 27 and newly for caliber .50. Model family, generation, slide/frame version, and rear sight cut must all match. A similar manufacturer designation is not enough.

Practical tip: Mounting base before click adjustment Check frame support, hole pattern, thread, and confirmed replacement height 10-10.5 mm before tightening. Secure and tighten screws only according to LPA/firearm manufacturer instructions. Only a mechanically centered and stable basic mounting makes the later click correction meaningful.

Practical tip: Treat front sight height as part of the system The front sight delivered with TXT0407-F1 BLACK BAS forms a coordinated height pair with the rear sight. Do not mix components with other LPA sets without confirmed approval.

Practical tip: Use black sight picture correctly Keep front and rear sight free of reflections and clean. With a dark target background, a bright target or adjusted lighting can help more than a changed sight adjustment. Limit: This version is
t is not the right choice if you need a highlighted fiber/Luminova or dot reference in low light.

Practical tip: Document changes
After zeroing, note distance, ammunition, and click adjustments. With the TXT0407-F1 BLACK BAS, never change multiple adjustment directions at once if the cause of a deviation is not yet clear.

Controlled zeroing and adjustment
After mounting, first completely unload the firearm and check for a solid sight picture, free slide/cylinder movement, and safe function. Then work at an approved shooting range with appropriate protective and safety equipment.
Start with a defined distance and the same ammunition. A clean group is more meaningful than a single hit. First determine the average point of impact, then correct height or windage in small documented steps. Use the rotation direction from the LPA manual.
Since the TXT0407-F1 BLACK BAS includes rear sight and front sight as a set, the combined sight height is evaluated. If the adjustment reaches its stop, do not turn further; first clarify mounting, front sight height, firearm fit, and ammunition.
After confirming the zero point, do not tighten the adjustment screws "just to be safe." Control marks and documented click positions help detect later movement.

Scope of delivery and additionally required parts
Confirmed or assigned to the SKU: sight set with rear sight and front sight; mounting screws, if specified in the concrete source description.
Not included: firearm and mounting tools outside the confirmed scope of delivery; firearm; ammunition; sight pusher or other mounting tools, unless explicitly stated otherwise. Product images may show the firearm or complete sight image, even if only the specified component is sold.

Comparison and suitable alternatives:
TXT is the direct adjustable revolver sight solution. WXT adds a Weaver interface on the sight base for an optional reflex sight. Within the same series, SKUs mainly differ by firearm fit, front sight scope, and sight picture.
LPA TXT01-07-SILVER BASE adjustable revolver sight for 629, 686, 586, 627, 66, 67, 696, 17, 19, 657, 610, 625, 29, 27 – black sight picture
LPA TXT0107-F1-SILVER BA adjustable revolver sight for 629, 686, 586, 627, 66, 67, 696, 17, 19, 657, 610, 625, 29, 27 – black sight picture
LPA TXT03-F1-SILVER(SET) adjustable revolver sight for 629, 686, 586, 627, 66, 67, 696, 17, 19, 657, 610, 625, 29, 27 – fiber optic

Care and function check
Keep sight body, rear sight cutout, and adjustment screws free of sand, powder residue, and dried oil. Do not leave cleaning agents in fiber, Luminova, or click mechanisms. After impact or visible movement, confirm zero point again.
Observe mounting screws and frame contact via control marks. Move adjustment screws only within the intended range; a stop is not an invitation to apply more force.

Technical data

Manufacturer: LPA

Manufacturer code: TXT0407-F1 BLACK BAS

Series: TXT

Product type: adjustable revolver sight set

Confirmed fit: 629, 686, 586, 627, 66, 67, 696, 17, 19, 657, 610, 625, 29, 27 and new for caliber .50

Sight picture: black sight picture

Scope of delivery type: sight set with rear sight and front sight

Source version: black finish, black sight blade

Confirmed exchange height: 10-10.5 mm

Important fit and safety note:
Mount only on a completely unloaded firearm and according to LPA/firearm manufacturer instructions. The compatibility list is more binding than product photo or similar model designation. For unclear milling, possible rework, or missing tools, choose professional mounting.

FAQ
For which firearm is the LPA TXT0407-F1 BLACK BAS intended? For 629, 686, 586, 627, 66, 67, 696, 17, 19, 657, 61
0, 625, 29, 27 and new for caliber .50 in the matching rear sight/frame version. Is a front sight included? Yes, this SKU is listed as a sight set with front sight. Does it need to be milled for installation? A general milling exemption is not confirmed. Properly check the mount and possible adjustment before installation. What does the sight picture black sight picture mean? The black version deliberately omits luminous, fiber optic, or dot markings. Its benefit lies in a reduced contour image with sufficient target contrast. What distinguishes this series from alternatives? TXT is the direct adjustable revolver sight solution. WXT adds a Weaver interface on the sight base for an optional reflex sight.