Small AR15 Parts
Small AR15 Parts encompass the essential components that keep your rifle functioning reliably. Browse our curated selection of small AR15 parts including buffer retainers, trigger pins, rails, and spare parts kits from trusted manufacturers. Whether you’re building, upgrading, or maintaining your platform, small AR15 parts are critical to performance and durability. Arms East ships to both Canada and USA customers, making quality small AR15 parts accessible wherever you operate.
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Small AR15 Parts
CMMG AR-15 Lower Parts Kit with Pins and Springs Accessory
$13.00Add to cartCMMG PART KIT AR15 LOWER PINS/SPRING
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Small AR15 Parts
CMMG AR-15 Upper Parts Kit with Pins and Springs
$13.00Add to cartCMMG PARTS KIT AR15 UPPER PINS/SPRNG
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CMMGCMMG Enhanced Field AR-15 Black Repair Parts Kit keeps you mission-ready with Mil-Spec trigger springs, firing pins, extractors, and detent springs for field-level maintenance. Complete your AR platform's reliability with all essential replacement components in one kit.Add to cartSmall AR15 PartsCMMG Enhanced Field AR-15 Black Repair Parts Kit
$36.00Add to cartCMMG Enhanced Field AR-15 Black Repair Parts Kit keeps you mission-ready with Mil-Spec trigger springs, firing pins, extractors, and detent springs for field-level maintenance. Complete your AR platform’s reliability with all essential replacement components in one kit.
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Small AR15 Parts
CMMG Mil-Spec 4.75 Inch Barrel Nut Accessory
$12.00Add to cartCMMG 55DA296 Mil-Spec
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CMMGCMMG Survival Kit Multi Caliber Parts Kit delivers high-quality components and precise manufacturing for reliable firearm maintenance and upgrades. Built for durability and years of dependable service.Add to cartSmall AR15 PartsCMMG Survival Kit Multi Caliber Parts Kit
$57.00Add to cartCMMG Survival Kit Multi Caliber Parts Kit delivers high-quality components and precise manufacturing for reliable firearm maintenance and upgrades. Built for durability and years of dependable service.
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CMMGCMMG Zeroed Anti-Walk Trigger Pins prevent mil-spec pins from walking out during firing with included screws and precision fit for .154" diameter receivers. Complete kit includes (2) trigger pins and (4) Torx T8 screws.Add to cartSmall AR15 PartsCMMG Zeroed Anti-Walk Trigger Pins Accessory
$35.00Add to cartCMMG Zeroed Anti-Walk Trigger Pins prevent mil-spec pins from walking out during firing with included screws and precision fit for .154″ diameter receivers. Complete kit includes (2) trigger pins and (4) Torx T8 screws.
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CMMGCMMG ZEROED extended mag catch delivers true ambidextrous operation with increased mechanical advantage for faster, easier magazine changes. Quality steel construction with serrated surface ensures reliable traction and works with mil-spec or aftermarket buttons.Add to cartSmall AR15 PartsCMMG Zeroed AR15 Ambidextrous Magazine Catch Accessory
$45.00Add to cartCMMG ZEROED extended mag catch delivers true ambidextrous operation with increased mechanical advantage for faster, easier magazine changes. Quality steel construction with serrated surface ensures reliable traction and works with mil-spec or aftermarket buttons.
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Kinetic Development GroupKinetic Development Group's 7-slot M-LOK aluminum rail lets you mount standard Picatinny accessories to any M-LOK compatible rail. Universal compatibility for lights, grips, and attachments.Add to cartSmall AR15 PartsKinetic Development Group M-LOK 7 Slot Picatinny Rail Black Accessory
$14.00Add to cartKinetic Development Group’s 7-slot M-LOK aluminum rail lets you mount standard Picatinny accessories to any M-LOK compatible rail. Universal compatibility for lights, grips, and attachments.
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Small AR15 Parts
KNS Precision AR-15 Firing Pin Retaining Pin Bolt Carrier Group Part
$11.00Add to cartKNS AR15 FIRING PIN RETAINING PIN
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KNS PrecisionKNS Precision's non-rotating G2 trigger hammer pins (.154 diameter) are engineered as the strongest available, built to withstand full and semi-auto suppressed fire in 9mm, .223", and 7.62mm.Add to cartSmall AR15 PartsKNS Precision Non-Rotating Trigger Hammer Pin .154 Diameter G2 Accessory
$35.00Add to cartKNS Precision’s non-rotating G2 trigger hammer pins (.154 diameter) are engineered as the strongest available, built to withstand full and semi-auto suppressed fire in 9mm, .223″, and 7.62mm.
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KNS PrecisionKNS Precision stainless steel non-rotating trigger hammer pin engineered for full and semi-auto fire in suppressed 9mm, .223", and 7.62mm weapons. Black nitride and DuraCoat finishes ensure lasting durability in demanding applications.Add to cartSmall AR15 PartsKNS Precision Non-Rotating Trigger Hammer Pin .1555 Accessory
$35.00Add to cartKNS Precision stainless steel non-rotating trigger hammer pin engineered for full and semi-auto fire in suppressed 9mm, .223″, and 7.62mm weapons. Black nitride and DuraCoat finishes ensure lasting durability in demanding applications.
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KNS PrecisionKNS Precision Non-Rotating Trigger Hammer Pins deliver maximum strength for full and semi-auto fire in suppressed 9mm, .223", and 7.62mm weapons with stainless steel construction and durable black nitride treatment.Add to cartSmall AR15 PartsKNS Precision Non-Rotating Trigger Hammer Pin 0.154 Diameter Accessory
$35.00Add to cartKNS Precision Non-Rotating Trigger Hammer Pins deliver maximum strength for full and semi-auto fire in suppressed 9mm, .223″, and 7.62mm weapons with stainless steel construction and durable black nitride treatment.
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KNS PrecisionKNS Precision Non-Rotating Trigger Hammer Pins feature stainless steel construction with 0.154 diameter engineered to withstand full and semi-auto fire in suppressed 9mm, .223", and 7.62mm weapons. Essential for M-16 and AR-15 platforms, they deliver maximum strength under demanding conditions.Add to cartSmall AR15 PartsKNS Precision Non-Rotating Trigger Hammer Pin 0.154 Diameter Accessory
$38.00Add to cartKNS Precision Non-Rotating Trigger Hammer Pins feature stainless steel construction with 0.154 diameter engineered to withstand full and semi-auto fire in suppressed 9mm, .223″, and 7.62mm weapons. Essential for M-16 and AR-15 platforms, they deliver maximum strength under demanding conditions.
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KNS PrecisionKNS Precision's strongest trigger hammer pin, engineered to withstand severe impact forces from suppressed 9mm, .223, and 7.62mm weapons in full and semi-auto configurations. Features 154 diameter stainless steel construction with black nitride or DuraCoat finishes.Add to cartSmall AR15 PartsKNS Precision Non-Rotating Trigger Hammer Pin 154 Diameter Accessory
$38.00Add to cartKNS Precision’s strongest trigger hammer pin, engineered to withstand severe impact forces from suppressed 9mm, .223, and 7.62mm weapons in full and semi-auto configurations. Features 154 diameter stainless steel construction with black nitride or DuraCoat finishes.
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Luth-ARLuth-AR buffer retainers with springs keep your AR-15 operating system secure and reliable. This 10-pack ensures you have replacements on hand for multiple builds or long-term maintenance needs.Add to cartSmall AR15 PartsLuth-Ar Buffer Retainer with Spring Accessory 10 Pack
$25.37Add to cartLuth-AR buffer retainers with springs keep your AR-15 operating system secure and reliable. This 10-pack ensures you have replacements on hand for multiple builds or long-term maintenance needs.
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Rise ArmamentRise Armament's Oh Shit Kit keeps essential AR-15 spare parts organized in a compact 2.55 inch magnetic tin, so you'll never lose critical screws, pins, and detents again. The labeled lid diagram makes identifying every component quick and easy.Add to cartSmall AR15 PartsRise Armament Oh Shit Kit 2.55 Inch AR-15 Spare Parts Kit
$15.99Add to cartRise Armament’s Oh Shit Kit keeps essential AR-15 spare parts organized in a compact 2.55 inch magnetic tin, so you’ll never lose critical screws, pins, and detents again. The labeled lid diagram makes identifying every component quick and easy.
