All AR15, AR10, ARs in 300 BLK any other caliber fall into this category. Basically if it has some pic rail somewhere, it can prolly be found here. Shop by Upper or Lower Receiver Components,
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![[Mil-Spec] AR-15 Buffer Retainer Spring](https://www.weaponoutfitters.com/media/catalog/product/cache/1/small_image/380x/9df78eab33525d08d6e5fb8d27136e95/a/r/ar15-buffer-retainer-spring.jpg)
![[Mil-Spec] AR-15 Gas Tube Roll Pin](https://www.weaponoutfitters.com/media/catalog/product/cache/1/small_image/380x/9df78eab33525d08d6e5fb8d27136e95/d/-/d-17650.jpg)
![[Mil-Spec] AR-15 Melonite Gas Tubes w/ Roll Pin](https://www.weaponoutfitters.com/media/catalog/product/cache/1/small_image/380x/9df78eab33525d08d6e5fb8d27136e95/b/a/ba_melonited_gas_tube.jpg)
![[Mil-Spec] AR-15 Mid Length Gas Tube](https://www.weaponoutfitters.com/media/catalog/product/cache/1/small_image/380x/9df78eab33525d08d6e5fb8d27136e95/m/i/midlength-gas-tube.jpg)
![[Mil-Spec] AR-15 Safety Selector Detent - 1 Each](https://www.weaponoutfitters.com/media/catalog/product/cache/1/small_image/380x/9df78eab33525d08d6e5fb8d27136e95/a/r/ar15-safety-detnt.jpg)
![[Mil-Spec] AR-15 Stainless Steel Gas Tubes w/ Roll Pin](https://www.weaponoutfitters.com/media/catalog/product/cache/1/small_image/380x/9df78eab33525d08d6e5fb8d27136e95/s/t/stainless-gas-tubes.jpg)
![[Mil-Spec] AR15/M4 Hammer Spring](https://www.weaponoutfitters.com/media/catalog/product/cache/1/small_image/380x/9df78eab33525d08d6e5fb8d27136e95/0/7/078-101-137.jpg)
![[Mil-Spec] G.I. AR-15/M-16 Barrel Nut](https://www.weaponoutfitters.com/media/catalog/product/cache/1/small_image/380x/9df78eab33525d08d6e5fb8d27136e95/c/m/cmt-barrel-nut.jpg)
