Small AR15 Parts
Small AR15 parts are the ones nobody thinks about until a build stalls or a rifle comes home from the range with a problem. Buffer retainers, trigger pins, takedown pins, bolt catch roll pins, selector detents, spring kits — none of them are exciting, but lose one mid-build or drop a detent into the grass and suddenly your rifle is a very expensive paperweight. Staying stocked on these components is just part of being a serious AR15 owner, whether you’re running a fresh build from scratch, finishing out a parts kit, or keeping a reliable rifle exactly that way.
Brands like Aero Precision, Daniel Defense, Bravo Company Manufacturing, Geissele, and mil-spec components from established manufacturers are well represented here — parts built to the tolerances the AR15 community actually trusts. These aren’t no-name fillers pulled from a mystery bin. They’re components from builders who understand what fit and function mean on a fighting rifle.
If you need a part to get a build finished or a rifle back in service, find what you need and order today — it’ll be on its way fast.
- Small AR15 Parts Add to cart
CMMG PARTS KIT AR15 UPPER PINS/SPRNG
Original price was: $14.00.$13.00Current price is: $13.00. SALEIn Stock - Small AR15 Parts Add to cart
CMMG Bolt Rehab Kit restores AR-15 bolt function with MIL-SPEC components including ejector, extractor, firing pin, gas rings, and springs—all made in the USA for reliable performance across 5.56mm, .223, and 300 Blackout platforms.
$38.00In Stock - Small AR15 Parts Add to cart
CMMG 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.
$36.00In Stock - Small AR15 Parts Add to cart
CMMG Mil-Spec 4.75 inch barrel nut designed for AR15 platforms. Constructed from 8620 steel with phosphate finish for durability and corrosion resistance.
$12.00In Stock - Small AR15 Parts Add to cart
CMMG 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.
$57.00In Stock - Small AR15 Parts Add to cart
CMMG 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.
$35.00Low Stock - Small AR15 Parts Add to cart
CMMG 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.
$45.00In Stock 
Kinetic Development Group M-LOK 7 Slot Picatinny Rail Black Accessory
Kinetic Development GroupAdd to cartSmall AR15 Parts Add 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.
$14.00In Stock- Small AR15 Parts Add to cart
KNS Precision PERMA Pin eliminates finicky cotter pins with a precision tool steel design that installs faster and easier—no special tools required, and it’s drop-in compatible with milspec AR-15 bolt carriers.
$11.00In Stock - Small AR15 Parts Add to cart
KNS 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.
$35.00In Stock - Small AR15 Parts Add to cart
KNS 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.
$35.00In Stock - Small AR15 Parts Add to cart
KNS 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.
$35.00In Stock - Small AR15 Parts Add to cart
KNS 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.
$38.00In Stock - Small AR15 Parts Add to cart
KNS 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.
$38.00In Stock
