Primary Weapons Systems MK118
The MK118 is the longest-barreled MK1 model, built on an 18-inch barrel in .223 Wylde or 6mm ARC. It is sold as a complete MOD 2 rifle in 6mm ARC and as MOD 1-M and MOD 2-M complete uppers.
Cajun Gun And Gear in Lafayette is an authorized Primary Weapons Systems dealer. Whether or not the MK118 is on our shelf today, we can order any current configuration for you — call 337.999.0373 or stop in.
Primary Weapons Systems MK118 Specs
| Model | Barrel | Weight | Finish | Maker base price |
|---|---|---|---|---|
| MK118 MOD 2 Rifle 6mm ARC | 18" | 7.3 lbs unloaded | Anodized 7075-T651 forged aluminum receiver | $2,309.95 |
| MK118 MOD 2-M Upper .223 Wylde | 18" | Not published | Not published | $1,499.95 |
| MK118 MOD 2-M Upper 6mm ARC | 18" | Not published | Not published | $1,499.95 |
| MK118 MOD 1-M Upper .223 Wylde | 18", 1:8 twist, 1/2-28 threaded, no muzzle device | 5 lbs | Not published | $1,299.95 |
| MK118 MOD 1-M Upper 6mm ARC | 18" | Not published | Not published | $1,299.95 |
Specs and base prices as published by the maker; options and pricing change, so confirm with us before you buy.
Key features
- 18" barrel for extended-range shooting
- 6mm ARC option
- PicLok handguard and PWS FRC 2-Port Compensator on the MOD 2 rifle
- Free-float M-LOK handguard on MOD 1-M upper
- 3-setting adjustable gas long-stroke piston
- SubMOA guarantee with high-quality ammunition
Who the MK118 is for
Longer-range precision and hunting with an AR-15-size rifle.
Comparing options? Other Primary Weapons Systems rifles to look at: MK116, MK114, MK216 MOD 2-M, Alpha, UXR. Or see the full Primary Weapons Systems lineup.
What comes in the box
Primary Weapons Systems does not publish box contents for this model. Ask us and we will confirm before you order.
Primary Weapons Systems MK118 FAQ
What calibers is the MK118 available in?
The MK118 is offered in .223 Wylde (.223 Rem / 5.56 NATO), 6mm ARC.
What versions of the MK118 are there?
Primary Weapons Systems lists these versions: MK118 MOD 2 Rifle 6mm ARC; MK118 MOD 2-M Upper .223 Wylde; MK118 MOD 2-M Upper 6mm ARC; MK118 MOD 1-M Upper .223 Wylde; MK118 MOD 1-M Upper 6mm ARC.
How much does the MK118 cost?
Primary Weapons Systems lists base pricing of $1,300–$2,310 for the versions in the table above, before options. Call us for current pricing and availability.
How much does the MK118 weigh?
MK118 MOD 2 Rifle 6mm ARC: 7.3 lbs unloaded; MK118 MOD 1-M Upper .223 Wylde: 5 lbs.
Who is the MK118 best for?
Longer-range precision and hunting with an AR-15-size rifle.
Is the MK118 in stock at Cajun Gun And Gear?
Check the products below for what is on our shelf right now. If the configuration you want is not listed, we can order any current Primary Weapons Systems MK118 — call 337.999.0373 or email us.
Is Cajun Gun And Gear an authorized Primary Weapons Systems dealer?
Yes. Cajun Gun And Gear in Lafayette, Louisiana is an authorized Primary Weapons Systems dealer. Visit us at 108 Youngsville Hwy, Lafayette, LA 70508 or call 337.999.0373.
Buy Primary Weapons Systems in Louisiana
Cajun Gun And Gear is an authorized Primary Weapons Systems dealer in Lafayette, Louisiana. Our shop is at 108 Youngsville Hwy, Lafayette, LA 70508 (Mon–Fri 9–6, Sat 10–2). Stock comes and goes, and we can order any current model even when it is not on the shelf — call 337.999.0373, email us, or stop in. Out-of-state buyers: we ship to your local FFL dealer, who completes the transfer paperwork.