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Swap, Shoot, Smile: Primary Weapons Systems MK 116 PRO Upper



This one goes out to all the build-your-own black-gun guys …

The best thing about the AR-15 platform is that it’s tailor-made for do-it-yourselfers. The best thing about the Primary Weapons Systems MK 116 PRO upper is that it’s tailor-made for do-it-yourselfers who’ve done it enough to know what quality feels like. Just a few minutes spent swapping the upper can make all the difference on the range–especially if you’re a lefty. In this great video from Hoodlum’s Gun Bench (you should like and subscribe), you’ll see how simple it is to install the MK 116 PRO. Once it’s on, running your AR will be smoother, more accurate, and less likely to singe your arm if you’re a southpaw. Hoodlum’s 400-round test update video proves the MK 116 PRO delivers the dependability and accuracy you’re looking for. Want to find out why he calls it “definitely one of the finest, smoothest, and best shooting rifle uppers I’ve had to date”? Click here to learn more, or get one of your own!

However, if you’re feeling lucky, you can also win one for yourself (along with tons of other amazing guns & gear) by entering our …

Home Defense II $4.5K Guns & Gear Giveaway!

What do you need to defend yourself, your home, and your loved ones? Everything in this giveaway! Starting right now and ending at midnight CST April 30, you have the chance to win a soup-to-nuts home-defense package starring a Kahr Arms CM9 (which just so happens to be this author’s personal EDC, a Lone Wolf Distributors LTD19 V2, a Primary Weapons Systems MK116 PRO Upper and buffer tube, a Mountain Ankle IFAK Trauma Kit from USA Carry, a $1,000 gift card for Ammunition Depot (which sells much more than ammo!), $500 gift cards for both N8 Tactical and CrossBreed HolstersPersonal Defense Network Gold Membership including a  9-DVD Set + FREE Concealed Carry Box Set, and last (but not least) an MH6 Focusable portable light from our very own XDMAN!

Entering this giveaway is simple and free! Just click here, provide us a way to get in touch with you, and get ready to win one of our most popular giveaway packages ever.

A complete listing of the prize package on offer is below! Don’t worry; we’ll give you the signup link again at the end.

1. Kahr Firearms CM9, Matte Stainless Slide, 9mm pistol valued at $518.00

2. Lone Wolf Complete LTD19 V2 9mm Pistol- Black Frame Silver Slide Valued at $699.99

3. Primary Weapons Systems, MK116 PRO Upper, Valued at $824.95

4. Primary Weapons Systems, Enhanced Buffer Tube with Ratchet Lock Castlenut and Endplate, Valued at $129.99

5. USA Carry, Mountain Ankle IFAK Trauma Kit Valued at $151.99

6. Ammunition Depot Gift Card (valid only at Valued at $1,000

7. N8 Tactical Gift Card (Valid only at, Valued at $500

8. Crossbreed Holsters Gift Card (Valid only at, Valued at $500

9. PDN in the Home 9-DVD Set + FREE Concealed Carry Box Set, Valued at $129.99

10. PDN Gold Membership Valued at $124


11. XDMAN, MH6 Focusable portable light, Valued at $39.95

Awesome, right? Click here to enter!


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