store.name JMJ Firearms LLC Hours, Reviews & Deals – Updated March 2026

FFL Licensed Dealer

JMJ Firearms LLC

4.6 (109 reviews)

29015 Three Notch Rd, MECHANICSVILLE, MD, 20659

JMJ Firearms LLC - Store photo

About JMJ Firearms LLC

Veteran owned and operated Firearms/ammo/gunsmiths Sworn professionals

Rating Breakdown

4.6

109 reviews

5

94

4

4

3

1

2

2

1

8

Location & Hours

JMJ Firearms LLC

29015 Three Notch Rd, MECHANICSVILLE, MD, 20659

240-466-3066

View Store Directions

Store Hours

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

10:00 AM – 5:30 PM

Closed

10:00 AM – 5:30 PM

10:00 AM – 5:30 PM

10:00 AM – 5:00 PM

10:00 AM – 5:30 AM

Closed

Popular Hours

Popular visit times aren't available for this store yet.

Customer Reviews

109 reviews

Verified Reviewer

1 year ago

Officially my new gun store I will always go to. Been trying to get some work done on my gun and couldn't find someone. Recently jmj hosted a gun raffle that's how I found about them, So figured to give them a call. Arrived at 10am and left at 11am with my new iron sights and red dot installed with a gun cleaning. Quick, friendly and honestly a nice place to shop. Would recommend to try it out

Verified Reviewer

1 year ago

Great quality firearms, and outstanding customer service. As a Southern MD resident JMJ firearms provides the best experience as a consumer in the firearms market. John, I personally want to thank because he’s consistently providing positive energy, great conversation, & speedy responses to any inquiries I may have. ALL the JMJ staff deserve equal recognition! Keep up the great work guys! This proud customer approves!

Q&A

Do you take pistols/rifles for trade in for another firearm?

Answer: we buy used firearms

2 years ago

What are the Covid safety practices like here?

Answer: We follow Cdc guide lines

4 years ago

Products at JMJ Firearms LLC

12 products in stock

Barrett, Comes With All Three Caliber Kits Listed, Five 10 Round Magazines Per Caliber, Bipod, Bag Rider, Three Accessory Rails, Two Bore Guides (7.62 and .300/.338), Stock Spacer Kit With Four Spacers & Hardware, Cleaning Kit With Rod, Tool Kit With Torq

Barrett, Comes With All Three Caliber Kits Listed, Five 10 Round Magazines Per Caliber, Bipod, Bag Rider, Three Accessory Rails, Two Bore Guides (7.62 and .300/.338), Stock Spacer Kit With Four Spacers & Hardware, Cleaning Kit With Rod, Tool Kit With Torq

New Not In-Store Online

UPC:

Brand:

Barrett

Model:

MK22

Caliber:

300 Winchester Magnum

Capacity:

10

JMJ Firearms LLC

4.6 (109)

$18,882.35

Barrett, MRAD MK22, Bolt Action Rifle, 300 Norma Mag, 26" Fluted Barrel, 1:8" Twist, 49.625" Overall Length, Coyote Brown Cerakote Finish, Synthetic Stock, 10 Rounds, 1 Magazine, Includes Contract Mount, Leupold 7-35x56 With T3 Reticle, Bipod Bag Rider

Barrett, MRAD MK22, Bolt Action Rifle, 300 Norma Mag, 26" Fluted Barrel, 1:8" Twist, 49.625" Overall Length, Coyote Brown Cerakote Finish, Synthetic Stock, 10 Rounds, 1 Magazine, Includes Contract Mount, Leupold 7-35x56 With T3 Reticle, Bipod Bag Rider

New Not In-Store Online

UPC:

Brand:

Barrett

Model:

MK22

Caliber:

.300 Norma Magnum

Capacity:

10

JMJ Firearms LLC

4.6 (109)

$16,250.00

Ohio Ordnance Works, Inc, M240-SLR, 7.62NATO, 20" Barrel, Black Phosphate, 2,500 M13 Belt Links, Front Sight Combo Adjusting Tool, Cleaning Kit, Disassembly Tool, Custom Fitted Hard Case, Parts Pouch, 24.2 lbs

Ohio Ordnance Works, Inc, M240-SLR, 7.62NATO, 20" Barrel, Black Phosphate, 2,500 M13 Belt Links, Front Sight Combo Adjusting Tool, Cleaning Kit, Disassembly Tool, Custom Fitted Hard Case, Parts Pouch, 24.2 lbs

New Not In-Store Online

UPC:

-

Brand:

Ohio Ordnance Works, Inc

Model:

M240-SLR

Caliber:

.308 Winchester

Capacity:

-

JMJ Firearms LLC

4.6 (109)

$15,243.89

Barrett, M107A1, Semi-Automatic, 50 BMG, 29" Barrel, Gray Cerakote Finish, Synthetic Stock, Front/Rear Flip Sights, 10+1 Rounds, 1 Magazine, Bipod, Pelican Hard Case

Barrett, M107A1, Semi-Automatic, 50 BMG, 29" Barrel, Gray Cerakote Finish, Synthetic Stock, Front/Rear Flip Sights, 10+1 Rounds, 1 Magazine, Bipod, Pelican Hard Case

New Not In-Store Online

UPC:

Brand:

Barrett

Model:

M107A1

Caliber:

50 BMG

Capacity:

10

JMJ Firearms LLC

4.6 (109)

$14,764.63

Barrett, M107A1, Semi-Automatic, 50 BMG, 20" Barrel, Black Cerakote Finish, Synthetic Stock, Front/Rear Flip Sights, 10Rd, 1 Magazine, Bipod, Pelican Hard Case

Barrett, M107A1, Semi-Automatic, 50 BMG, 20" Barrel, Black Cerakote Finish, Synthetic Stock, Front/Rear Flip Sights, 10Rd, 1 Magazine, Bipod, Pelican Hard Case

New Not In-Store Online

UPC:

Brand:

Barrett

Model:

M107A1

Caliber:

50 BMG

Capacity:

10

JMJ Firearms LLC

4.6 (109)

$14,764.63

Barrett, M107A1, Semi-Automatic, 50 BMG, 29" Barrel, Flat Dark Earth Cerakote Finish, Synthetic Stock, Front/Rear Flip Sights, 10+1 Rounds, 1 Magazine, Bipod, Pelican Hard Case

Barrett, M107A1, Semi-Automatic, 50 BMG, 29" Barrel, Flat Dark Earth Cerakote Finish, Synthetic Stock, Front/Rear Flip Sights, 10+1 Rounds, 1 Magazine, Bipod, Pelican Hard Case

New Not In-Store Online

UPC:

Brand:

Barrett

Model:

M107A1

Caliber:

50 BMG

Capacity:

10

JMJ Firearms LLC

4.6 (109)

$14,764.63

Barrett, M107A1, Semi-Automatic, 50 BMG, 20" Barrel, Gray Cerakote Finish, Synthetic Stock, Front/Rear Flip Sights, 10+1 Round, 1 Magazine, Bipod, Pelican Hard Case

Barrett, M107A1, Semi-Automatic, 50 BMG, 20" Barrel, Gray Cerakote Finish, Synthetic Stock, Front/Rear Flip Sights, 10+1 Round, 1 Magazine, Bipod, Pelican Hard Case

New Not In-Store Online

UPC:

Brand:

Barrett

Model:

M107A1

Caliber:

50 BMG

Capacity:

10

JMJ Firearms LLC

4.6 (109)

$14,764.63

Barrett, M107A1, Semi-Automatic, 50 BMG, 20" Barrel, Flat Dark Earth Cerakote Finish, Synthetic Stock, Front/Rear Flip Sights, 10+1 Rounds, 1 Magazine, Bipod, Pelican Hard Case

Barrett, M107A1, Semi-Automatic, 50 BMG, 20" Barrel, Flat Dark Earth Cerakote Finish, Synthetic Stock, Front/Rear Flip Sights, 10+1 Rounds, 1 Magazine, Bipod, Pelican Hard Case

New Not In-Store Online

UPC:

Brand:

Barrett

Model:

M107A1

Caliber:

50 BMG

Capacity:

10

JMJ Firearms LLC

4.6 (109)

$14,764.63

Barrett, M107A1, Semi-Automatic, 50 BMG, 29" Barrel, Black, Cerakote Finish, Synthetic Stock, Front/Rear Flip Sights, 10+1 Rounds, 1 Magazine, Bipod, Pelican Hard Case

Barrett, M107A1, Semi-Automatic, 50 BMG, 29" Barrel, Black, Cerakote Finish, Synthetic Stock, Front/Rear Flip Sights, 10+1 Rounds, 1 Magazine, Bipod, Pelican Hard Case

New Not In-Store Online

UPC:

Brand:

Barrett

Model:

M107A1

Caliber:

50 BMG

Capacity:

10

JMJ Firearms LLC

4.6 (109)

$14,764.63

Rizzini USA Rhino Express Side by Side Rifle 470 Nitro Express 23" Barrel Coin Anodized Silver Oiled Turkish Walnut Double Gun Stock w/ Pistol Grip Stock Ambidextrous Hand

Rizzini USA Rhino Express Side by Side Rifle 470 Nitro Express 23" Barrel Coin Anodized Silver Oiled Turkish Walnut Double Gun Stock w/ Pistol Grip Stock Ambidextrous Hand

New Not In-Store Online

UPC:

Brand:

Rizzini

Model:

Rhino Express

Caliber:

470 Nitro Express

Capacity:

2

JMJ Firearms LLC

4.6 (109)

$14,400.94

Rizzini USA, Rhino Express, Side By Side, 500 Nitro Express, 23" Gloss Blued Barrel, Coin Anodized Silver Rec, Oiled Turkish Walnut Double Gun With Pistol Grip Stock, Ambidextrous Hand, 2 Rounds

Rizzini USA, Rhino Express, Side By Side, 500 Nitro Express, 23" Gloss Blued Barrel, Coin Anodized Silver Rec, Oiled Turkish Walnut Double Gun With Pistol Grip Stock, Ambidextrous Hand, 2 Rounds

New Not In-Store Online

UPC:

Brand:

Rizzini USA

Model:

Rhino Express

Caliber:

.500 Nitro Express 3"

Capacity:

2

JMJ Firearms LLC

4.6 (109)

$14,400.94

B&T APR338 Bolt Action 338 Lapua 27" Threaded Barrel Black No Sights 10 Rounds

B&T APR338 Bolt Action 338 Lapua 27" Threaded Barrel Black No Sights 10 Rounds

New Not In-Store Online

UPC:

Brand:

B&T

Model:

APR338

Caliber:

338 Lapua Magnum

Capacity:

10

JMJ Firearms LLC

4.6 (109)

$11,368.11

View All Products at JMJ Firearms LLC

JMJ Firearms LLC - Store photo

Contact Information

29015 Three Notch Rd

MECHANICSVILLE, MD 20659

jmjfirearmsllc.com

Nearby Stores

pdscustoms

Backwoods Guns and Ammo

Medusa Munitions

CTE Firearms

Guns and Ammo

Guns and Ammo

Precision Ballistics LLC

American Redneck Company, LLC

Saturday Morning Westerns LLC

Haze Line Guns

View All Stores in Mechanicsville

Join the Gun Made Newsletter

Never miss a deal or giveaway. Get weekly price drops, exclusive coupons, and 2A news.

No spam. Unsubscribe anytime.