Customizable Ar15 Uppers, Parts, & More!

Welcome! Browse our site for awesome Ar15 Deals!
Custom design your AR-15 Upper. MILLIONS of configurations!
Parts are in stock. Due to current demand, some orders may take several business days.
Current ship times are from 1 day to about a week.

We build our Ar15 uppers here in Clinton, MS, USA! Complete uppers are headspace checked and test fired before shipping.

Free Shipping on orders over $500!

OilSlick Ar15 Parts

Make your AR-15 stand out with our wide selection of OilSlick neochrome rainbow PVD chameleon parts. 
Mid State Firearms was first to bring this style of AR parts to the market.


Ar15 mil spec Trigger - Oilslick rainbow Neochrome finish	10" hybrid mlok ar15 rail - chameleon rainbow oilslick	17.1" 223 wylde 1:8 Twist Flute Chameleon Rainbow Oilslick PVD
$52.91	$249.00 $199.00	$399.00 $299.00



Oilslick chameleon rainbow Anti-Roation trigger/hammer pin set	blem Blue Stars American Flag PVD Ar15 Bolt Carrier Group BCG	16" Ar15 Blue 223 Wylde SS Hbar upper with 15" 7side Mlok
$37.99	$329.42 $149.50	$499.00 $399.00



16" Ar15 Purple 223 Wylde SS Hbar upper with 15" 7side Mlok	16" Blue Chameleon Ar15 SS Hbar Barrel, Carbine, 223 wylde	16" Purple Ar15 SS Hbar Barrel, Carbine, 223 wylde
$499.00 $399.00	$249.00	$249.00



16" SS HBar 223 Wylde 1:8 Ar15 Barrel - Oilslick / Chameleon	80% Chameleon Rainbow Oilslick lower	Black Ar15 Charging Handle with Oilslick Spec Ops extended latch
$299.00 $199.00	$199.00 $149.00	$79.37 $44.37



Custom Oilslick Ar15 Upper, Diamond flute barrel 12" hybrid mlok	Lower Receiver - Oilslick / Chameleon / Rainbow pvd FFL Item	12 chameleon rainbow ultralight mlok handguard
$899.00 $749.00	$229.00	$229.00 $199.00



Ar15 Oilslick Chameleon Builder Set, 10" Mlok - FFL Item	Ar15 Oilslick Chameleon Builder Set, 10" Mlok - FFL Item	Ar15 Oilslick Chameleon Builder Set, 12" Mlok - FFL Item
$858.62 $702.48	$858.62 $702.48	$858.62 $702.48



Ar15 Oilslick Rainbow 15" Mlok Hybrid Handguard	blem oilslick stripped upper	Blue Stars American Flag PVD m16 Ar15 Bolt Carrier Group BCG
$858.62 $249.00	$199.00 $159.00	$329.42 $159.50



Chameleon rainbow OilSlick Ar15 Bolt Carrier Group m16 BCG	Custom Assembled Oilslick Ar15 Upper - You pick options	Oilslick Ar15 Slim Flash Can, 5/8-24 Threads
$329.42 $189.05	$841.48 $709.18	$72.76



Oilslick ar15 stripped upper/lower receiver combo FFL item	oilslick ultralight mlok 15" handguard	blem OilSlick Ar15 Chameleon Bolt Carrier Group m16 BCG
$709.18 $576.88	$199.00	$249.42 $149.05



10.5 300 Blackout Rainbow PVD Oilslick 416r 1:8 Ar15 Barrel	16 Straight Fluted Rainbow PVD Oilslick 223 Wylde ss Ar15 Barrel	7.5 300 Blackout Rainbow PVD Oilslick 416r 1:8 Ar15 Barrel
$395.58 $329.42	$395.58 $329.42	$395.58 $329.42



Ar15 Oilslick Chameleon pvd magazine release kit with button	Blue chameleon PVD m16 Ar15 Bolt Carrier Group BCG	Custom Color / Caliber PVD m16 Ar Bolt Carrier Group BCG
$39.67 $29.99	$329.42 $149.12	$329.42 $197.12 (1)



Oilslick Ar15 Safety Selector - Rainbow chameleon pvd neochrome	Oilslick Chameleon Ambi Ambidextrous Ar15 Safety Selector	Oilslick Rainbow Chameleon PVD Ar15 Takedown Pins
$39.67	$52.91 $39.91	$39.67 $29.99



Oilslick Rainbow Neochrome Chameleon Ar15 M-Lok Handguard	Oilslick Rainbow PVD Forward Assist	Oilslick Rainbow PVD Tanker Muzzle Brake 1/2-28 223
$329.42 $316.20	$66.13 $62.17	$132.29



Oilslick Rainbow PVD Trigger/Hammer Pin Set (2)	10.5" 5.56/223 Rainbow PVD Oilslick 416r SS Ar15 Barrel	16" 300 Blackout Rainbow PVD Oilslick 416r 1:8 Ar15 Barrel
$39.67 $26.45	$395.58 $263.28	$395.58 $329.42



18" 450 Bushmaster Rainbow PVD Oilslick 416r Ar15 Barrel	18" Fluted Rainbow PVD Oilslick .223 Wylde 1:8 SS Ar15 Barrel	18" Spiral Flute Rainbow PVD Oilslick .223 Wylde SS Ar15 Barrel
$395.58 $382.34	$461.72 $355.88	$461.72 $342.34 (1)



20" Fluted Rainbow PVD Oilslick 5.56/223 1:8 SS Ar15 Barrel	24" Fluted Rainbow PVD Oilslick .223 Wylde 1:8 416r SS Ar15	7.5" 556/223 Rainbow PVD Oilslick 416r SS Ar15 Barrel
$461.72 $382.34	$527.88 $395.58	$395.58 $263.28



Ar15 Low Profile chameleon .750 ss Gas Block - Oilslick pvd	Ar15 OilSlick Bolt Catch	Ar15 Oilslick Stormbreaker Tactical Unicorn Builder Set - FFL
$79.37 $59.52	$33.06 $29.99	$858.62 $702.48



Diamond Fluted Rainbow PVD Oilslick .223 Wylde 416r Ar15 Barrel	Oilslick 224 Valkyrie 22" 1:7 416r Spiral Ar15 Barrel	Oilslick Ar15 Ambi Sling attachment / End plate
$395.58 $299.42	$633.72 $395.58	$33.06 $29.99



OilSlick Ar15 Bolt Carrier Group m16 BCG Choose Your Caliber!	Oilslick Ar15 Castle Nut	Oilslick Ar15 Charging Handle - Spec Ops extended latch
$329.42 $236.82	$33.06 $29.99	$79.37



Oilslick Ar15 Slim Flash Can, 1/2-28 Threads	Oilslick PVD Rainbow Neochrome Ar15 Mil Spec Buffer Tube 6pos	Oilslick Rainbow Ar15 Stripped upper
$72.76	$79.37 $59.37	$236.95



Oilslick Rainbow PVD Competition Muzzle Brake SS 1/2-28 223	Oilslick Rainbow PVD Competition Muzzle Brake SS 5/8-24 .30cal	16" Spiral Flute Rainbow PVD Oilslick .223 Wylde SS Ar15 Barrel
$79.37	$79.37	$395.58 $316.20



Crazy Psychedelic BCG Purple Haze PVD Ar15 Bolt Carrier Group	Snowflake Tactical Unicorn Ar15 Rainbow Bolt Carrier Group	OilSlick Ar15 Bolt Carrier Group m16 BCG
$329.42 $197.12	$329.42 $176.82 (1)	$329.42 $199.00



OilSlick Ar15 / M16 Bolt CARRIER ONLY
$263.28 $170.66 (1)