Fierce Firearms Chassis Kit — Bronze | Fits AR-15 Long-Action* | Model LACHSBZ | UPC 853418803943
Give your advanced AR build a true precision backbone. The Fierce Firearms Chassis Kit in Bronze (LACHSBZ) delivers the rigidity, adjustability, and modularity that serious hunters and long-range shooters demand. With expansive M-LOK® coverage, a tunable buttstock section, and a rock-solid bedding interface, this chassis turns your rifle into a repeatably accurate, bag-friendly, and accessory-ready platform—without excess bulk. The premium Bronze finish adds a tough, low-glare look that stands up to weather, dust, and hard use.
Model/SKU: LACHSBZ
UPC: 853418803943
Finish/Color: Bronze (low-glare, abrasion-resistant)
Fitment: AR-15 long-action* pattern (see important compatibility notes below)
*“Long action” here follows the manufacturer’s receiver/bolt-length standard. Traditional AR-15 receivers are typically “short” pattern; verify your upper/lower interface, cartridge COAL, bolt/magazine spec, buffer system, and mounting points before purchase.
Why Upgrade to the Fierce Bronze Long-Action Chassis
Rigid accuracy foundation: A monolithic chassis minimizes flex and bedding shift to keep your zero stable through heat cycles, rough travel, and seasonal swings.
Shooter-first ergonomics: Adjustable cheek riser and length of pull help you lock in a relaxed, repeatable head position for faster target acquisition and less parallax error.
M-LOK® everywhere you need it: Mount bipods, ARCA plates, barricade stops, QD cups, and internal/external weights exactly where performance demands—no unnecessary bulk.
Field-tough Bronze finish: Premium coating provides low reflectivity and durable protection in rain, snow, dust, and brush.
Better balance & tracking: Flat, bag-friendly stock geometry and optional weight tuning promote straight recoil and a faster return to sight for follow-up shots.
Future-proof modularity: Update glass, supports, and accessories over time without replacing your core chassis.
Key Features at a Glance
Platform: Manufacturer-defined AR-15 “long-action” receiver spec (confirm interface for your build)
Adjustability: Micro-adjust cheek height & length of pull (tool/tool-less varies by package—confirm contents)
Forend: M-LOK® slots at multiple clock positions for accessories and weights; ARCA compatibility via M-LOK® adapters
Buttstock Section: Flat underside for consistent rear-bag tracking; integrated QD sling points (check inclusion)
Grip Interface: Accepts standard AR-style pistol grips (choose your angle/texture)
Finish: Low-glare Bronze, abrasion-resistant
Model: LACHSBZ | UPC: 853418803943
In-the-box items can vary. Confirm included mounting hardware, spacers, QD cups, and any ARCA/weight-kit compatibility with your retailer.
Real-World Performance Benefits
Repeatable precision: Rigid bedding and a consistent action interface deliver predictable cold-bore impacts and tight vertical through strings.
Natural eye alignment: Dial cheek/LOP to your scope height for less neck strain and steadier holds during long days on glass.
Stable across positions: Forend and butt geometry cooperate with barricades, tripods, and rear bags for PRS-style practice and field positions.
Weatherproof confidence: Non-warping chassis construction resists moisture and temperature shifts better than traditional stocks.
Ideal Use Cases
Predator & varmint hunting: Pair with a compact bipod and rear bag to run steady, low-recoil strings across open country.
Long-range/steel training: Build a forgiving positional rifle with tuned balance and repeatable ergonomics.
General precision carbine: Combine with a quality barrel and optic for a versatile rig that handles near-to-far engagements.
Compatibility & Fit Notes
Receiver interface: Designed around the manufacturer’s AR-15 “long-action” spec—verify your upper/lower geometry, bolt face, magazine standard, and recoil/buffer system.
Barrel & gas system clearance: Confirm barrel contour, gas block size, and forend clearance if adding full-length ARCA or weights.
Grips & accessories: Accepts most AR-style pistol grips and M-LOK® accessories.
Magazine system: Ensure your cartridge and magazines match the chassis’ cut and latch geometry.
Suggested Setup (Pro Tips)
Optic: 3–15x or 4–16x with a zero stop and reliable tracking (MOA or MRAD to match your workflow). Mount low, then set cheek height to align your eye perfectly.
Support: A cant/lock bipod, a small rear bag, and a low-profile barricade stop up front.
Trigger: Quality single- or two-stage trigger to capitalize on the chassis’ stability advantage.
Balance: Add M-LOK® weights or an ARCA plate to tune center of gravity for your positional style.
Sling: Two-point QD sling for hike-in carry and quick loop-up support.
Installation (Quick Guide)
Unload & clear your firearm.
Separate upper/lower; remove existing stock/handguard/furniture as required.
Seat & torque the receiver into the chassis per manufacturer specs; use thread prep where directed.
Adjust cheek riser and LOP to match your optic height and shooting posture; lock settings.
Verify function: Magazine insertion/ejection, safety, trigger, and bolt travel.
Zero & confirm: Re-check torque after the first range session and validate zero.
New to chassis installs? A qualified armorer can ensure proper torque, thread prep, and mag fitment.
Care & Maintenance
Wipe down with a damp cloth; avoid harsh solvents on coated surfaces.
Re-torque action screws and forend accessories seasonally or after travel.
Inspect M-LOK® fasteners/QD points; use thread prep per accessory maker.
Protect exposed fasteners with a light corrosion inhibitor in humid/salty environments.
Specifications (Quick Reference)
Brand: Fierce Firearms
Product: Chassis Kit (Bronze)
Fitment: AR-15 long-action pattern (verify your receiver and cartridge system)
Adjustability: Cheek height & length of pull
Mounting: M-LOK® forend; QD sling provisions (varies by package)
Finish: Bronze, low-glare, abrasion-resistant
SKU: LACHSBZ
UPC: 853418803943
Frequently Asked Questions
Q: Will this fit a traditional AR-10 (.308) large-frame build?
A: This model targets the manufacturer’s AR-15 “long-action” spec. AR-10/LR-308 patterns are dimensionally different—confirm fitment before purchase.
Q: Is an ARCA rail included?
A: Typically sold M-LOK®-only; add ARCA plates/rails as needed. Check your retailer’s listing for included hardware.
Q: Can I add a folding mechanism?
A: Folding adapters depend on your buffer/receiver extension and recoil system. Verify compatibility before purchase.
Q: What torque values should I use?
A: Follow Fierce and accessory-maker torque specifications for action screws and M-LOK® fasteners; witness-mark critical screws.
Q: Will the Bronze finish match other Bronze/FDES accessories?
A: The Bronze is a premium metallic tone; minor shade differences can occur across brands and coatings.
SEO-Friendly Highlights (Naturally Woven)
Fierce Firearms Chassis Kit Bronze, AR-15 long-action precision chassis, adjustable cheek riser & LOP, M-LOK® forend, rigid bedding for repeatable accuracy, rear-bag-friendly stock geometry, modular precision rifle chassis LACHSBZ, UPC 853418803943.
Meta for Your Product Page
Meta Title: Fierce Firearms Chassis Kit — Bronze | AR-15 Long-Action | LACHSBZ
Meta Description: Upgrade your rifle with the Fierce Bronze Chassis Kit. Adjustable cheek/LOP, M-LOK® forend, rigid accuracy foundation, and bag-friendly geometry. Model LACHSBZ — UPC 853418803943.
Build your rifle around rigidity, adjustability, and modular control—the Fierce Firearms Bronze Chassis Kit (LACHSBZ) is the precision base your advanced AR deserves.
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