Brownells Coupon Codes, Discounts and Deals

(1,469 deals total)

The M&P M2.0 pistol, the newest innovation to the respected M&P polymer pistol line.  Designed for personal, sporting, and professional use, the M&P M2.0 delivers an entirely new platform, introducing innovative features in nearly every aspect of the pistol, including trigger, grip, frame, and finish. Highlights of the M&P M2.0 pistol include an extended stainless-steel chassis and high grip to barrel bore axis ratio for reduced muzzle rise and faster aim recovery.

Specs This brass cased full metal jacket ammunition is a great economical option for practice or plinking. Manufactured in Bosnia it's non-corrosive and brass cased. ITEM DETAILS Bullet Style: Full Metal Jacket (FMJ) Bullet Weight (Grains): 115 Cartridge: 9 mm Luger Muzzle Energy: 378 Muzzle Velocity (feet per second): 1217 Rounds: 1000 MPN#: PTGB9MMBCASE 105-004-001WB

The Brownells XM177 Flash Hider & Grenade Ring is the appropriate reproduction piece for your Retro carbine build. This flash hider mirrors the original device's exterior dimensions, as well as flash hider cuts and grenade ring. The XM177 Flash Hider fits 1/2-28 threads, is machined from 8620L steel and has a black oxide finish. Flash Hider lenght is 4.335" and with the grenade ring, bring the total length to 4.45". This is the proper muzzle device for the following reproduction builds: XM177 or Colt Model 610 XM177E1 or Colt Model 609 Colt Model 619/620 XM177E2 or Colt Model 629

100-026-809WB 1-4x24mm Illuminated AHSR MIL Black W/AR Mount Battery: CR-2032 Click Value: 0.2 MRAD Eye Relief: 3.50" Finish: Black Focal Plane: Second Illumination: Yes, ... click details to view more.... Description Specs Get On Target at Dawn or Dusk The Athlon Optics Talos BTR 1-4x24mm riflescope offers hunters the opportunity to add enhanced capabilities to their optics in order to perform better during the low-light hours when animals are more likely to move into the line of fire.

078-000-732WB M16 BCG 5.56 & AR-15 Charging Handle & (10) AR-15 30RD Mag Item Details Cartridge: 5.56 mm NATO Finish: Black Nitride Made in the USA Restriction High Cap Mags Domestic Sales - Please check with your state regulations for ownership of High Capacity magazines. High-capacity magazine restriction High-capacity magazine restriction 30 rounds. Foreign Shipping This item cannot be shipped out of the United States. Foreign Sales This item cannot be sold out of the United States. Make Model Make: AR-15

430-100-176WB 10/22® 16" PENCIL BARREL NITRIDE THREADED Mfr Part: 12B216N16NPQ-T Cartridge: 22 Long Rifle Length: 16" Barrel Weight: 1 lbs Contour: Pencil Finish: Nitride Muzzle Threads: 1/2-28, ... click details to view more.... One of the pillars of Faxon Firearms is their belief in the Fellowship of Firearms.

100-042-554WB EPC MOE Lower Parts Kit Black Mfr Part: APRH101322 Item Details Made in the USA Make Model Make: AR-15 EPC MOE Lower Parts Kit Black UPC#: 840014611980

100-043-998WB REBEL 45™ Offset Dot Sight Mount & Liberty Red Dot Mfr Part: LBT001223MNT Battery Life: 4500 hours Brightness Settings: 10 settings Finish: Black Power Supply: (1) CR 1632 Lithium Battery Reticle: Red Dot Weight: 2.7 oz

MAKE : SMITH & WESSON MODEL : M&P SHIELD PLUS CARTRIDGE : 9 MM LUGER CAPACITY : 10+1-ROUND BARREL LENGTH : 3.1" FINISH : BLACK LENGTH : 6.1" MAGAZINE TYPE : REMOVABLE SAFETY : YES> Flat face trigger for consistent trigger finger placement that allows for more accurate and repeatable shooting. - Enhanced grip texture allows the user to manage recoil, keep a firm grip and delivers comfort when concealing. - Two 10 round magazines included - Tactile and audible trigger reset - Extremely thin and lightweight - can be comfortably carried all day.

Semi-auto lower receiver is machined from a 7075 T6 aluminum forging to mil-spec dimensions for precise fit and outstanding performance. Ruggedized hardcoat anodized finish resists scuffs, scratches, and wear. Stamped and color-coded bullet selector position markings notify operator when weapon is in “safe” or “semi-auto.” A “full-auto” position is not selectable but gives this semi-auto lower receiver the appearance of being multi-burst capable. Magazine well features Spike’s spider logo and multi-cal engraving. Mfr Part: BST15C 100-004-686WB STLC200SBS 855713006456

Burnished & Hand Polished For Smooth Operation & Superior Reliability

1B220332 Mfr Part: 1B220332 CARTRIDGE: 22 LONG RIFLE BULLET WEIGHT (GRAINS): 40 ROUNDS: 50 BULLET STYLE: LEAD SOLID POINT Item Details Brand Style: Super Extra Standard Velocity Bullet Style: Lead Solid Point Bullet Weight (Grains): 40 Cartridge: 22 Long Rifle Muzzle Energy: 113 Muzzle Velocity (feet per second): 1130 Rounds: 50 Restriction Products shipped via Ground to Canada. All other international locations are shipped Air. Ammo WARNING

100-023-923WB Springfield M1A/M14 Magazine 308 Winchester 20rd Stl Blk 5pk Cartridge: 308 Winchester Capacity: 20-Round Finish: Black Material: Steel Quantity: 5 Standard & High-Capacity For Competition & Tactical Ops

Description Factory Specified Size Measures M16/AR-15 Maximum Headspace Made to the Colt factory's special dimensions for M16/AR-15 rifles. It measures the maximum factory acceptable headspace; an essential check on guns that have seen extensive service or have been rebarreled. AR-15, Issue:08, Page:070 AR-15, Issue:08, Page:074 Big Book Catalog, Issue:65, Page:068 Big Book Catalog, Issue:65, Page:072 Law Enforcement / Police Store, Issue:08, Page:054 Specs

Pretty much retail price but if you want this carrier and do not want to wait (and if you have a bolt), here you go. ITEM DETAILS Caliber: 22 Caliber (.223-.224) Finish: Black Made in the USA MAKE MODEL Make: AR-15/M4, M16

100-042-444WB MAKE : SMITH & WESSON MODEL : M&P SHIELD PLUS CARTRIDGE : 9 MM LUGER CAPACITY : 10+1-ROUND BARREL LENGTH : 3.1" FINISH : BLACK LENGTH : 6.1" MAGAZINE TYPE : REMOVABLE SAFETY : NO Flat face trigger for consistent trigger finger placement that allows for more accurate and repeatable shooting. - Enhanced grip texture allows the user to manage recoil, keep a firm grip and delivers comfort when concealing. - Two 10 round magazines included - Tactile and audible trigger reset - Extremely thin and lightweight - can be comfortably carried all day.

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols. 078-000-730WB Glk 17 G3 Slide & Org Front/Blk Square Rear Tirtium Sights Cartridge: 9 mm Luger Finish: Black Style: Front & Rear Serrations Sights: Perfect Dot Tritium The Foundation for a Superb D.I.Y. Pistol - Ergonomically Enhanced for Excellent Control

100-042-967WB MkW-15 Complete Bolt Carrier Group Repair Kit .458 SOCOM Mfr Part: 48AFF0C 100-042-968WB MkW-15 Complete Bolt Carrier Group Repair Kit 6.5 Grendel Mfr Part: 66AFF44

The Echo AR-II Trigger is a ground breaking drop in design that is approved by the ATF. The Echo AR-II trigger does not come with a bolt carrier. You will need a full auto bolt carrier in your firearm for the Echo AR-II to function. If you have any questions in regards to if you have a full auto carrier, please visit echoquestions.com. The Echo Trigger allows the shooter to select from 3 different settings Safe Mode: Firearm will not fire. Semi-Automatic Mode: Firearm fires when trigger is pulled. Echo Mode: Firearm fires when trigger is pulled and also when trigger is released.

BT30105NUS Mfr Part: BT30105NUS CARTRIDGE: 9 MM LUGER CAPACITY: 30+1-ROUND BARREL LENGTH: 5.12" FINISH: BLACK LENGTH: 11.93" MAGAZINE TYPE: REMOVABLE SAFETY: YES Item Details Action Type: Recoil Operated Barrel Length: 5.12" Capacity: 30+1-Round Cartridge: 9 mm Luger Finish: Black Front Sight: Fixed Length: 11.93" Magazine Included: 1 x 30-Round Magazine Type: Removable Muzzle: Tri-Lug Rear Sight: Fixed Safety: Yes Stock Material: Polymer Weight: 3.75 lbs Restriction FFL

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols. 100-026-166WB Threaded Barrel for Glock 43 SS w/G43 Piston 1/2"x28 Cartridge: 9 mm Luger Barrel Length: 3.5" Finish: Stainless Steel Style: Threaded Description Specs

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols. Silencerco’s threaded barrels for Glock® handguns are made from 416R stainless steel and available with a black nitride or natural stainless steel finish. These fit both Gen 3 and Gen 4 Glocks®. 9mm barrels have 1/2x28 threads, while the .45 ACP barrel has .578x28. Includes thread protector. 100-026-172WB Mfr Part: AC1329SS

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols. Silencerco’s threaded barrels for Glock® handguns are made from 416R stainless steel and available with a black nitride or natural stainless steel finish. These fit both Gen 3 and Gen 4 Glocks®. 9mm barrels have 1/2x28 threads, while the .45 ACP barrel has .578x28. Includes thread protector. Mfr Part: AC864SS

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols. 100-026-168WB Threaded Barrel for Glock 17 SS 1/2"x28 Cartridge: 9 mm Luger Barrel Length: 5" Finish: Stainless Steel Style: Threaded

100-047-495WB 1-10x24mm SFP Red Guerrilla Dot BDC w/Independence Mount Battery: CR-2032 Click Value: 1/2 MOA Eye Relief: 3.46", 3.54" Finish: Black Focal Plane: Second, ... click details to view more.... Description Specs

100-050-570WB X-Sound Hearing Protector With Bluetooth Mfr Part: ACPROTXSND Color: Green NRR: 22 dB Style: Electronic ATN X-Sound reduces harmful loud noise down to safe levels below 82 dB and enhances clarity of surrounding low level sounds such as conversations and announcements. The ergonomic volume control knob allows for total adjustment of the two built-in omni directional microphones, while built-in wireless capability enableshands-free calling and music enjoyment. Or, connect a playing device via the 3.5 mm audio jack. FEATURES - BLUETOOTH WIRELESS TECHNOLOGY

100-028-557WB 40-41 Caliber Boresnake with Den Mfr Part: 24003VD Item Details Caliber: 40/10 mm (.400-.401), 41 Caliber (.410-.412) Style: Pistol All-In-One, Pull-Through Cleaning System The Pistol Viper Bore Snake is a braided nylon, pull-through cleaning cord that scrubs, cleans, and lubricates in a single step. The Pistol Viper is just like the original Bore Snake, with 50% more scrubbing surface for those extra-tough cleaning jobs. - Calibers: .22, .30, .32, 9mm, .357, .380, .38, .40, .41, .44, .45

078-000-685WB BRN-180 Lower Parts Kit Brownells has taken the guesswork out for you! Need a lower parts kit? We have put together the small parts needed from some of our top suppliers just for you! This kit includes the following items: - Magazine Release - Magazine Release Button - Magazine Catch Spring - Bolt Catch - CMMG Trigger - Hammer Assembly - Hammer Spring - Trigger Disconnector Spring - Trigger Spring - Disconnect - Disconnect Spring - Safety Selector - Selector Spring - Selector Detent - Pistol Grip Screw - Pistol Grip Washer A2 Pistol Grip

100-025-999WB AR-15 AR II Echo Drop-In Binary Trigger Style: Binary Description The Echo AR-II Trigger is an ATF approved trigger that allows for fast follow up shots for great fun at the range. The Echo AR-II Trigger allows the shooter to select from 3 different settings: - Safe Mode: Firearm will not fire. - Semi-Automatic Mode: Firearm fires when trigger is pulled. - Echo Mode: Firearm fires when trigger is pulled and also when trigger is released.

- Use this filler to get the coupon code working HERE. With a fast reset, a smoother, crisper, lighter trigger pull, The single-stage trigger group is easy to install. Features: Single-stage Works for both AR-15 and AR-308 type rifles 3.5- 4.0 lb. pull weight Quick reset for faster response time between shots Lightened trigger pull with super-crisp release to improve accuracy Curved skeleton trigger function and comfort

160-000-444WB Barrel 5.56mm NATO 11.5" 1-7 Black Cartridge: 5.56 mm NATO Length: 11.5" Contour: Heavy Finish: Black Gas System Length: Carbine Muzzle Threads: 1/2-28, ... click details to view more.... Description Specs Genuine Colt Quality - Ready for Your Next AR-15 Pistol / SBR Build

Factory original, fire control parts keep your select-fire Colt M16/M4 shooting reliably, so you’ll be prepared to face intensive tactical operations with the confidence of knowing your weapon won’t let you down. These parts are precision engineered and manufactured to strict quality control standards from the finest materials for correct fit in your gun. All NFA rules apply. Caliber: 22 Caliber (.223-.224) Finish: Matte Black 160-000-371WB Mfr Part: SP62286

Description Specs Quality Ammo You Can Trust Hollow point slugs provide superior stopping power and hard hitting performance time after time. Full bore rifled slugs improve accuracy and sectional density and are designed for use in smooth bore barrels. Saboted Slugs feature a unique two-piece sabot for improved accuracy and are designed for use in rifled choke tubes or fully rifled barrels. Ammo WARNING

The Aero Precision EPC-9 receiver set is the perfect foundation for your next AR9 build. Precision machined from 2 custom 7075-T6 Aluminum forgings and featuring a last round bolt hold open. Compatible with standard frame Glock magazines, the EPC-9 receiver set is compatible with 9x19 and .40 S&W when using the appropriate bolt carrier and barrel. EPC-9 Lower Receiver Features: - Threaded bolt catch pin for easy installation. - Integrated enlarged trigger guard to remove any risk of breaking off trigger guard tabs, and provide an overall more rugged platform to build on.

100-049-036WB EPC-9 9mm Complete Upper 8.3" CMV BBL 7.3" Enh Handguard Mfr Part: APAR620269M85 Item Details Cartridge: 9 mm Luger Finish: Black Length: 8.3" Muzzle: 1/2-28 Style: Complete Twist: 1-10 Made in the USA Make Model Make: AR-15

100-025-505WB M4E1 Assembled Gen2 Upper 10.5 Car Length 9 Handguard Cartridge: 5.56 mm NATO Finish: Black Style: Assembled Contour: M4 Length: 10.5 "Top Half" With Enhanced Features for Your AR Pistol or SBR

100-025-516WB M4E1 Assembled Gen 2 Upper Receiver 18 Rifle Length Cartridge: 223 Wylde Finish: Black Style: Assembled Contour: M4 Length: 18 Tactical Carbine Upper With Target Rifle Performance Aero Precision’s M4E1 .223 Wylde Upper Receiver provides rifle-like performance - and versatility - in a carbine-sized package. It features a .223 Wylde chamber that is optimized to deliver excellent performance from both military 5.56x45mm NATO and civilian .223 Remington ammunition, including long, heavy (up to 80 grain) target bullets.

APAR600118 Mfr Part: APAR600118 MAKE/MODEL: AR-15 CARTRIDGE: 5.56 MM NATO FINISH: BLACK Item Details Cartridge: 5.56 mm NATO Finish: Black Style: Complete Made in the USA Restriction FFL

100-023-875WB 10/22 Takedown SB-X Tapered Barrel Silver Benefits of an SBR Without the NFA Paperwork The Tactical Solutions SB-X 10/22® Takedown Barrel is compact and lightweight, a replacement for the heavy factory barrel that lets you lighten up your Ruger® 10/22® Takedown rifle without sacrificing accuracy. The bore length the Tactical Solutions SB-X 10/22® Takedown Barrel is 12.375", with a permanently attached shroud that brings the overall length to a legal, no-NFA-paperwork-required 16.625". You get all the benefits of an SBR (Short Barreled Rifle) with NO ATF paperwork.

160-710-148WB M4 LE6933 Upper Group 11.5in with BCG and Sights Cartridge: 5.56 mm NATO Finish: Black Style: Complete Contour: Carbine Length: 11.5" Muzzle: 1/2-28, ... click details to view more.... Description Specs Add the Colt legend of reliability to your rifle or build with these complete feature 1/7 RH twist in a chrome lined, button rifled barrel. Available with or without a charging handle, bolt carrier group, and back up sights. All NFA rules apply. NOTE: “Stripped” does NOT include bolt carrier group (BCG), charging handle, or rear backup sight

100-054-499WB Mfr Part: APAR620002AC MAKE/MODEL: AERO CARTRIDGE: 9 MM LUGER CARTRIDGE: 40 S&W FINISH: FLAT DARK EARTH Item Details Cartridge: 9 mm Luger, 40 S&W Finish: Flat Dark Earth Style: Stripped Made in the USA Restriction FFL

080-001-354WB 6.5 Grendel Barrel 24" 1-8 Twist Rifle-Length Cartridge: 6.5 Grendel Length: 24 Finish: Stainless Steel Gas System Length: Rifle Muzzle Threads: 5/8-24 Twist: 1-8 Description Specs A High-Quality Barrel for Your AR-15 The Brownells 6.5 Grendel AR-15 barrel provides AR rifle owners with a high-quality barrel option that provides peak performance at an affordable price.

100-043-903WB Stribog Stock Adaptor Mfr Part: STR3200 Item Details Finish: Black Material: Aluminum Made in the USA Make Model Make: Grand Power Model: Stribog The KDG Stribog Stock Adapter was designed to be utilized with the ACR Stock. It is made of 6061-T6 Aluminum and finished in a Black Type 3 Hardcoat. (This is the adapter only and does not include the stock) UPC#: 851064007944

100-049-040WB EPC-9 9mm Threaded Comp Upper 8.3" CMV BBL 7.3" Handguard Mfr Part: APAR620701M85 Item Details Cartridge: 9 mm Luger Finish: Black Length: 8.3" Muzzle: 1/2-28 Style: Complete Twist: 1-10 Made in the USA Make Model Make: AR-15

100-049-037WB EPC-9 9mm Complete Upper 11" CMV BBL 9.3" Enh Handguard Mfr Part: APAR620275M86 Item Details Cartridge: 9 mm Luger Finish: Black Length: 11" Muzzle: 1/2-28 Style: Complete Twist: 1-10 Made in the USA Make Model Make: AR-15

APAR620558 Mfr Part: APAR620558 MAKE/MODEL: AR-15 CARTRIDGE: 9 MM LUGER CARTRIDGE: 40 S&W FINISH: BLACK Item Details Cartridge: 9 mm Luger, 40 S&W Finish: Black Style: Complete Made in the USA Restriction FFL

100-049-041WB EPC-9 9mm Threaded Comp Upper 11" CMV BBL 10.3" Handguard Mfr Part: APAR620703M86 Item Details Cartridge: 9 mm Luger Finish: Black Length: 11" Muzzle: 1/2-28 Style: Complete Twist: 1-10 Made in the USA Make Model Make: AR-15

100-043-883WB WILD 1 Weapon Light 500 Lumens Aluminum Black Mfr Part: WLD1051 Item Details Battery: CR-123A Lumens: 500 Style: Weaponlight Made in the USA Restriction Foreign Shipping This item cannot be shipped out of the United States.

WILSON COMBAT - AR-15 LOWER RECEIVER FORGED Mfr Part: TRLOWERANO Description Specs The foundation of any quality AR-15 rifle is a precision lower receiver. When it comes time to build the ultimate rifle, a Wilson Combat lower receiver is the ulimate foundation. Due to the nature of forged lowers, some pitting and machine marks are natural and unavoidable. Please do not be alarmed by these marks, they do not effect function. SKU#: 100-040-528WB UPC#: 810025503895

APAR600119 Mfr Part: APAR600119 MAKE/MODEL: AR-15 CARTRIDGE: 5.56 MM NATO FINISH: BLACK Item Details Cartridge: 5.56 mm NATO Finish: Black Style: Complete Made in the USA Restriction FFL

100-025-697WB Atlas S-One Handguard Free Float Aluminum 9" FDE Color: Flat Dark Earth Length: 9 Material: Aluminum Style: M-LOK Type: Free Float Description Specs Not Your Average Handguard The AR-15 ATLAS S-ONE M-LOK free-floating slim line handguards are machined from 6061-T6 aluminum, and have been designed with size and weight in mind, to provide a premium handguard solution for lightweight MSR builds. The handguards have a slim profile, but maintain the strength and stability shooters require, and have come to expect from Aero Precision handguards.

078-000-727WB M16 BCG 5.56mm/Charging Handle/PMAG Gen M2 30-RD Mag 10PK Cartridge: 5.56 mm NATO Finish: Black Nitride The Brownells M16 5.56 Complete Bolt Carrier Group is designed to work easily and reliably in any AR-15 or M16 rifle chambered in 5.56x45mm, 300 AAC Blackout or .223 Remington. The Brownells M16 5.56 Complete Bolt Carrier Group is constructed with a bolt made from 9310 steel, which is finished with a heat treatment and shot peening. The carrier is fabricated from 8620 hardened steel. Each element of the bolt-carrier group is finished in a black-nitride coating.

100-048-107WB 4-16x44mm FFP EBR-2C MOA Reticle Black W/AR Mount Description Specs Performs Great and is Priced Right Want the performance of a high-dollar optic while paying a fraction of the price? It sounds impossible, but the Vortex Diamondback Tactical 4-16x44mm FFP Riflescope offers just that, bringing high-end features to the average shooter.

100-049-005WB EPC-9 9mm/40 S&W Assembled Upper Receiver W/LRBHO FDE Mfr Part: APAR620302AC Cartridge: 9 mm Luger, 40 S&W Finish: Flat Dark Earth Style: Assembled The EPC-9 Enhanced Upper Receiver is the perfect addition to any AR9 build. Including a last round bolt hold open mechanism and compatible with Aero's robust lineup of Enhanced and Quantum handguards, the EPC-9 Enhanced Upper Receiver provides an extremely rugged handguard mounting solution.

100-054-500WB EPC 9 Threaded Upper Receiver w/ LRBHO Black Cartridge: 9 mm Luger, 40 S&W Finish: Black Style: Complete Muzzle: 1/2-28 Twist: 1-10 Description Specs Building your own EPC 9? Start with the Aero Precision EPC-9 upper receiver with the Last Round Bolt Hold Open feature! The upper is available in Black and FDE. MPN#: APAR620201AC

Replacement stock turns your 10/22 into a realistic looking stand-in for an M1 carbine without altering any part of the action. Easy drop-in fit for any 10/22 action with the standard 18½" tapered barrel. Original M1 stock parts were used to make steel patterns for automated precision lathes that cut raw European beechwood blanks into finished stocks in the unmistakable M1 shape, including the cutout in the butt for the original GI oiler/sling retainer (not included).

100-026-654WB 308 AR M5 Upper Receiver Stripped Black Cartridge: 308 Winchester Finish: Black Style: Stripped Description Aero Precisions stripped M5 Upper Receiver is made out of forged 7075-T6 aluminum and is a great fit for your 308 build. Precision machined to Aero Precision’s specifications, the upper features M4 feedramps and a matte black hard coat anodized Mil 8625 Type 3 Class 2 finish.

100-026-423WB Upper Receiver Assembled No Auto Sear Cut Black Cartridge: 5.56 mm NATO Finish: Black Style: Assembled Description Specs Designed for Single-Shot Use If you're looking to take advantage of the huge market for AR-15 components and accessories but aren't legally allowed to possess components that function with an installed auto sear in the AR-15 lower, then the Aero Precision AR-15 Upper Receiver with No Auto Sear Cut is the perfect product for you.

Great for 300 Blackout reloading and many others. Accurate 1680 - 1 lb Size: 1 lb

These AR15 Bolt Carrier Groups feature WMD’s NiB-X Nickel Boron Coating, which provides extreme durability, performance, and reliability. The Nickel Boron coating is corrosion resistant and harder than Nickel Teflon, Melonite, or Hard Chrome with a hardness of RC 72. Cycling is smoother and debris and buildup can simply be wiped free.