r/Mk12Mod0

Image 1 — Mk 12 Mod 1 inspired build
Image 2 — Mk 12 Mod 1 inspired build
Image 3 — Mk 12 Mod 1 inspired build
Image 4 — Mk 12 Mod 1 inspired build
▲ 78 r/Mk12Mod0+1 crossposts

Mk 12 Mod 1 inspired build

Did my best to get as close to clone as possible, but clone doesn’t always equal better. It’s still a work in progress, I’m not quite ready to call it done quite yet.

This was my first time painting a rifle, so cut me some slack.

80 percent lower

PSA upper

PSA contract overrun BCG

Geissele SSA-E trigger

Brownells A1 stock

KAC micro rear 200-600m

18” BA .223 wylde stainless w/ ops 12 profile premium series

Ergo original grip

Daydream defense stubby broomstick

Superlative arms agb

AE brake and collar

Knights Armament FF RAS long

Leupold mark AR mount

Vortex Viper PST 3-15x44

PRI gas buster combat latch

Harris BRM-S and KMW pod loc

Specter gear ranger green sling

u/JesusChristIsKing_2 — 3 days ago

Mk12 Carbine Clone(ish)

I will eventually get a KAC front sight and bipod mount, 14.5 barrel, and NT4 but here’s how it sits as of now.
- Fake Colt Lower
-Square forge upper
-16” 1:7 barrel
-PRI Gen 3 tube
-KAC 300M rear
-ARMS 40-L-F
-Leupold Mk4 CQ/T
-KAC Big Button Mag release
-SOPMOD stock
-Harris Bipod on ARMS mount
-Surefire M4FA suppressor

u/Awkward_System_5462 — 4 days ago

Delta Toob

Finally got a mk12 after years of wanting one, but decided to switch things up with a delta handguard.

u/BeppiDynamics — 6 days ago

My MK12

used MK12 upper, 1500 rounds through it roughly when i got it. everything else is stuff i had in boxes from other builds i threw on the PRI upper. B&T suppressor.

u/strongdogbowl — 7 days ago

How much force does this thing take to remove!?

Bought the PRI handguard tool. Trying to remove the gen3 rail to install new gas tube and pic rail underneath. Cant get the collar to loosen.

u/WiconsinGrey — 9 days ago

Best Glass Options for Mock12?

TL; DR - what are the best scope recommendations in 2026 if you don’t need clone correct?

No flair added because it was based on a Mod1 but opted for the BCM Raider rail and PSA billet receiver set. I primarily wanted a more accurate 5.56 that also utilized my OCM5. So I don’t care about being clone correct, but I did start by looking at a Leupold Mk4HD. Currently threw on a PLxC 1-8 that I had available to get some rounds down range.

I have been in analysis paralysis trying to decide a reasonable budget but also wanting to buy once, cry once. I regularly shoot at an indoor 100yd range; so, I am not stretching out like most of y’all but 1) do want to be capable when I go to longer outdoor ranges and 2) would prefer to see my hits on paper even at 100yds (wearing contacts with an astigmatism).

So my budget is technically anything but more practically under $2,000. Ideally, I don’t want to go much over 4x on the low end and will take as much magnification as I can while still balancing weight. I was looking at the NX8 2.5-20, TenMile 3-18, Leupold Mk5HD 3.6-18, and PA GLx 4-16. I am partial to the Christmas tree reticles like the PR2, MIL-XT, Athena, etc.

To-date, I only have one MPVO (Athlon Ares ETR UHD 4.5-30 APRS1) and two LPVOs (PLxC 1-8 Griffin MIL and EOTech VUDU 1-10 SR5) for reference; so, I don’t want to go overkill but don’t want to spend a grand now and the regret not buying better later.

u/illestdomer2005 — 12 days ago
▲ 55 r/Mk12Mod0+1 crossposts

Managed to find an AEM5 finally!

Mind-boggling how much of a difference suppressors make even shooting supers. Hoping to pick up a AEM5K before July for a MK18ish build Im planning. Enjoying a free state while it lasts after getting out of LA.

Checked out Bear Swamp today and it was a pretty chill range. I was able to go as a walk on with no membership for $30 a hour , but doubt anyone was running a clock on me. Targets were a bit sparse for the 3 and 400 yard bays but it was still a cool spot.

u/Slore0 — 13 days ago
▲ 172 r/Mk12Mod0+1 crossposts

Moved across the country to finish this damn thing.

Full PRI upper, ACE SOPMOD, Sig MSR 2-12, UTG QD rings, HK VFG, Warne 7911m, Magpul MOE+, Timney Impact trigger, and finally a AEM5

u/Slore0 — 14 days ago

I did my best to see if this question had already been answered on here, with no luck.

Been running a one-piece sled under my Leupold Mk3hd 3-9x40, but I am wanting to switch to some #22 mediums. Can anyone confirm mediums will allow for the 40mm objective lens on the PRI rail?

reddit.com
u/McFrazierr — 13 days ago