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Browning Buck Mark

• moderate
• Shop tier 2
• high confidence
• Rimfire Pistol
• rimfire
• blowback
• target pistol
• requires tools

field strip ~4 min · reassembly ~6 min · detail strip ~25 min

Specifications

Model-specific safety

• Removing the barrel requires tools and is not necessary for routine cleaning. Most owners only need to remove the slide and clean the chamber and bore from the breech.
• Rimfire ammunition can fire from a rim strike. Keep it out of the work area.
• The recoil spring is under tension when the slide is removed.
• Over-tightening the barrel screws on reassembly can affect accuracy and damage threads. Snug is enough.

Under spring tension

• Recoil spring and guide
• Magazine spring

Easily lost parts

Barrel screws · Recoil spring guide · Sight rail

Tools

Shop difficulty

Shop tier 2 Tier 2 — moderate among pistols, for the full job: strip to the parts that get coated and put it back together working. Browning's current parts price list runs to key 64 (this page's 1990s list has 129 rows because it repeats keys for every variant); the frame strip has an interlocked hammer, sear, sear spring and safety plate with an orientation-sensitive sear pin, the sight rail and barrel are held by screws whose torque shifts zero, and owners call it a challenge to reassemble. Below the Ruger Mark series, above a Glock.

Parts: 71 numbered parts (The parts list on this page = 'Parts List Browning Buck Mark 22 Semi-Automatic Pistol' (1990s edition), one list for standard, Plus, Micro, Nickel, Silhouette, Varmint, Field/Target 5.5, Unlimited,…), from Owner's Manual, Buck Mark 22 Semi-Automatic 22 Caliber Pistol — Browning, p. 10 ia601807.us.archive.org [2].

Bench time: about 30 min to strip, 50 min to rebuild (estimate). Estimate for an experienced tech with the right tools, detail strip to coatable parts (slide internals, frame pins, trigger group, sights) and rebuild to a function-checked gun; scale used across pistols: Glock-pattern 15/20 min, other strikers 20-30/25-40, DA/SA hammer guns 30-35/45-50, Hi-Power, Colt 1903 and Mark 23 40-45/60-75.

Small parts: 12 pins, 13 springs, 2 detents or plungers (counted from the manufacturer's parts list (one per key number unless a quantity is given))

What comes off for coating

• Barrel / sight rail: barrel mount screws, sight rail/base, rear sight, front sight, barrel — 3/16 in. hex key
• Slide (bolt): recoil spring guide and spring, firing pin (or housing assembly) and spring, extractor, plunger and spring
• Frame: grips, mainspring and plunger, magazine latch and spring, magazine ejector, spring and pin, hammer, link pin and pin, sear, sear spring and pins, safety and detent plate, disconnector, pin and spring, stop-open latch and spring, trigger and pin — punch set

Special tools

• 3/16 in. hex (Allen) key — Barrel/sight rail screws
• Torque driver (recommended) — Returning the barrel screws to the same torque

Known pain points

• The sear pivot pin has a nipple on one end that must go through the safety detent plate; put in backwards the plate wanders and the hammer and trigger misbehave. (reassembly)
  Owners report: Pre-2001 Browning Buckmark Re-assembly Issue — Bullseye-L Forum bullseyeforum.net [4] — “The pin #48 that the sear pivots on has a small nipple on one end that is supposed to go through a hole on plate #46 with the "safe" detent, thereby holding the plate in place. I had put that pin in backwards”
• Getting the hammer, sear, safety lever and sear spring back in so the hammer catches correctly is a known stumbling block. (reassembly)
  Owners report: Pre-2001 Browning Buckmark Re-assembly Issue — Bullseye-L Forum bullseyeforum.net [4] — “They can be a challenge to reassemble, but they're great shooters, especially the older ones.”
• On older (pre-2001) slides the firing pin is fragile and difficult to replace. (both)
  Owners report: Pre-2001 Browning Buckmark Re-assembly Issue — Bullseye-L Forum bullseyeforum.net [4] — “In my experience the old firing pins were prone to breakage, and difficult to replace.”
• Browning warns the inner mechanism assemblies are finely fitted and can be permanently damaged by disassembly past the manual. (both)
  Source: Browning Buck Mark Pistol Owner's Manual — Browning browning.com [1] — “NEVER ATTEMPT TO TAKE YOUR FIREARM APART FURTHER THAN EXPLAINED IN THIS OWNER'S MANUAL. YOUR FIREARM IS A SPECIALIZED, FINELY FITTED MECHANISM.”

Fit or check on rebuild

• Barrel/sight-rail screw torque — Screws torqued differently than before shift the point of impact
• Sear pin orientation and hammer engagement — A backwards sear pin lets the safety plate wander and the hammer fail to catch
  Source: Pre-2001 Browning Buckmark Re-assembly Issue — Bullseye-L Forum bullseyeforum.net [4] — “I had put that pin in backwards, so there was no nipple to hold the plate”
• Full function check (trigger reset, safeties, slide lock-back, drop of striker/hammer only on trigger) — Standard after any fire-control strip; confirms springs and sears went back correctly

This is Pew-Takedown's rating, not the manufacturer's. How tiers are rated. Forum reports are owners' experience, not specifications.

Procedures

Torque specifications

No sourced torque values from the manufacturer are recorded for this firearm. Where a fastener has a specified torque — action screws, scope bases, muzzle devices, barrel nuts — get it from the manufacturer or a gunsmith rather than estimating it.

What the manufacturer does say: The manufacturer's documents give no torque value. They say: "When finished making adjustments, carefully tighten the screw using the 1/16" hex wrench." (Browning Buck Mark Pistol Owner's Manual) "If using serviceable thread locking compound to ensure the screws stay tight, make sure the thread locking compound does not get into the action." (Browning Buck Mark Pistol Owner's Manual)

Materials and factory finish

As stated by Browning Arms Company. Prep, masking and cure depend on these; a polymer or aluminium part, a nitrided or anodised finish, and a blued steel part are each a different job. Variants with other finishes may exist — check the maker's page for the exact SKU on the bench.

Parts list

Transcribed from the manufacturer's parts list (Owner's Manual, Buck Mark 22 Semi-Automatic 22 Caliber Pistol — Browning, p. 10 ia601807.us.archive.org [2]) — "Parts List Browning Buck Mark 22 Semi-Automatic Pistol" (1990s edition). One list covering standard, Plus, Micro, Nickel, Silhouette, Varmint, Field/Target 5.5, Unlimited, Bullseye and Pro Target parts. Variant rows share keys. Some part numbers were read from a low-resolution scan; confirm them wi. Key numbers refer to the exploded view in that document.

Function check

• Verify the pistol is unloaded with no magazine inserted before each step.
• Cycle the bolt by hand and confirm it returns fully into battery.
• Cock the action, engage the safety, and press the trigger. The hammer must not fall.
• Disengage the safety and press the trigger. The hammer should fall.
• Confirm the magazine locks in and drops free.
• Confirm both barrel screws are still snug after the first range session.

Maintenance

Lubrication points

• Bolt rails in the frame
• Recoil spring guide
• Sear and hammer pivots

Cleaning notes

You can clean the bore from the breech with the bolt out, which avoids disturbing the crown. That is the main reason routine cleaning does not require removing the barrel.

Suggested inspection interval: roughly every 500 rounds. This is a general guideline, not a manufacturer specification.

Wear parts to inspect

Extractor · Recoil spring · Magazine follower and feed lips

Common issues

Also covers

The procedures above are reported to apply to: Buck Mark Camper · Buck Mark Standard · Buck Mark Contour · Buck Mark Plus. Verify against the manual for your specific model.

Similar manual of arms

• Ruger Mark IV

Sourcing