store.name Duncan's Gunworks Hours, Reviews & Deals – Updated February 2026

FFL Licensed Dealer

Duncan's Gunworks

4.5 (82 reviews)

1619 Grand Ave, San Marcos, CA, 92078

About Duncan's Gunworks

Duncan's Gunworks is a licensed gun dealer in San Marcos, CA.

Location & Hours

Duncan's Gunworks

1619 Grand Ave, San Marcos, CA, 92078

760-727-0515

View Store Directions

Store Hours

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

Closed

9:00 AM – 5:00 PM

9:00 AM – 5:00 PM

9:00 AM – 5:00 PM

9:00 AM – 5:00 PM

9:00 AM – 5:00 PM

Closed

Popular Hours

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

Customer Reviews

82 reviews

Verified Reviewer

10 months ago

Great service and solid online selection This is a cool old-school gun store with a small in-store inventory, but don’t let that fool you. Their online selection is much bigger, and they’ll ship anything you order to the store for free, which is super convenient. What really sets this place apart is the staff—everyone is genuinely friendly, helpful, and down-to-earth. None of that “know-it-all” attitude you sometimes get in other gun shops. I definitely recommend stopping by, especially if you want good customer service and access to a solid range of options online.

Verified Reviewer

2 months ago

Great selection of guns and fantastic staff. Hugo spent a lot of time with me answered all my questions. He never made me feel rushed or tried to push me into buying something. I’ll definitely be back.

Q&A

FFL transfers charge?

Answer: Crazy. $147.

2 years ago

What are transfer fees for this shop?

Answer: Crazy. $147.

2 years ago

Products at Duncan's Gunworks

12 products in stock

Smith & Wesson, M&P SHIELD EZ, 9MM, 3.675" Barrel, Polymer Frame, Black Finish, 3-Dot Sights, Grip/Thumb Safety, 8Rd, 2 Magazines

Smith & Wesson, M&P SHIELD EZ, 9MM, 3.675" Barrel, Polymer Frame, Black Finish, 3-Dot Sights, Grip/Thumb Safety, 8Rd, 2 Magazines

New In-Store Online

UPC:

Brand:

Smith & Wesson

Model:

M&P 9 Shield EZ

Caliber:

9mm

Capacity:

8

Duncan's Gunworks

4.5 (82)

$573.68

Ohio Ordnance Works, Inc, M2-SLR, Semi-automatic, Belt Fed Rifle, 50BMG, 20" Barrel, 1:12 Twist, Black Phosphate Finish, Includes (200) 50 Cal Links, Cleaning Kit, Headspace Gauge Set, Ruptred Case Extractor, Wrench, Custom Fitted Hard Case

Ohio Ordnance Works, Inc, M2-SLR, Semi-automatic, Belt Fed Rifle, 50BMG, 20" Barrel, 1:12 Twist, Black Phosphate Finish, Includes (200) 50 Cal Links, Cleaning Kit, Headspace Gauge Set, Ruptred Case Extractor, Wrench, Custom Fitted Hard Case

New Not In-Store Online

UPC:

-

Brand:

Ohio Ordnance Works, Inc

Model:

M2-SLR

Caliber:

50 BMG

Capacity:

-

Duncan's Gunworks

4.5 (82)

$19,210.51

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:

-

Duncan's Gunworks

4.5 (82)

$16,447.36

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:

-

Duncan's Gunworks

4.5 (82)

$16,106.32

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

Duncan's Gunworks

4.5 (82)

$15,930.26

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

Duncan's Gunworks

4.5 (82)

$15,930.26

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

Duncan's Gunworks

4.5 (82)

$15,930.26

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

Duncan's Gunworks

4.5 (82)

$15,930.26

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

Duncan's Gunworks

4.5 (82)

$15,930.26

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

Duncan's Gunworks

4.5 (82)

$15,930.26

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

Duncan's Gunworks

4.5 (82)

$13,651.32

FN America, Steel Frame, 556 NATO, Para 16.1" Chrome Lined Cold Hammer Forged Barrel, Rotating/Telescoping Metal Buttstock Assembly With Hydraulic Recoil Buffer System, Adjustable Primary Sights, Standard Disintegrating Link Belt-Fed, Includes Integral St

FN America, Steel Frame, 556 NATO, Para 16.1" Chrome Lined Cold Hammer Forged Barrel, Rotating/Telescoping Metal Buttstock Assembly With Hydraulic Recoil Buffer System, Adjustable Primary Sights, Standard Disintegrating Link Belt-Fed, Includes Integral St

New Not In-Store Online

UPC:

Brand:

FN Herstal

Model:

M249S

Caliber:

5.56x45mm NATO

Capacity:

-

Duncan's Gunworks

4.5 (82)

$12,182.89

View All Products at Duncan's Gunworks

Duncan's Gunworks - Store photo

Contact Information

1619 Grand Ave

San Marcos, CA 92078

shop.duncansgunworks.com

Nearby Stores

Splitz Second Shooting FT&S, LLC

Gun Room Munitions

Poway Weapons & Gear

Sportsman's Warehouse

Sportsman's Warehouse

Brass & Bass

Right To Bear

LOZO Products

Kovert Projects

Bass Pro Shops

View All Stores in San Marcos

Join the Gun Made Newsletter

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

No spam. Unsubscribe anytime.