Sign up for our newsletter — Exclusive Deals, New Arrivals, & More Sign Up Here

Search

Start your search here...

Search

Wishlist

Cart 0

You may also like

Based on your cart

Order Note

Add order or delivery instructions for our team.

Order instructions

Coupon

Enter your coupon code and we'll apply it at checkout.

Coupon code

Total: $0.00

Taxes and shipping calculated at checkout

View Cart Check Out

Home
Firearms
1911s Semi-Auto Pistols Revolvers Old-School Revolvers S&W Model 36 Used Sig P320s Beretta 71s See All →

Bolt Action Semi-Auto Rifles Lever Action Hunting M48 Sporter M937B Rifles M937A Rifles Swiss Rifles Enfield Rifles SKS SKS Yugo Sporter SKS Yugo Military See All →

Semi-Auto Tactical Pump Action AR-Style Lever Action Break Action See All →

AKs AK Rifles AK Pistols AK Receivers AR-15 AR-15 Rifles AR-15 Lowers AR-15 Pistols Receivers & Lowers See All →

Gunsmith Specials Classic Military Cheap Guns Certified Used C&R Eligible See All →
Ammunition
9mm .45 ACP .40 S&W .380 ACP See All

.223 / 5.56 7.62x39 See All

Rimfire Shotshells See All

Bulk Ammo Blowout Deals Surplus Ammo See All

Brass Case Steel Case Reloading See All
Magazines
Glock 1911 See All

AR-15 / AR-10 AK Saiga / Vepr Shotgun See All

Drums Surplus Mags Suomi M31 See All

Loaders & Carriers Magazine Parts & Accessories Closeouts See All
C&R Eligible
Parts and Accessories
All AR-15 Parts Upper Parts Lower Parts Complete Uppers AR-15 Kits Lower Parts Kits AR Build Tools See All →

All AK Parts AK Furniture AK Kits AK Build Tools SKS Parts Saiga / VEPR Parts Yugo M70 AK Parts See All →

Barrels & Barrel Components Bolts & Bolt Carrier Groups Buttstocks Grips & Grip Parts Handguards & Handguard Parts Fire Control Parts Sights & Sight Accessories Muzzle Brakes Gas Tubes & Components Springs, Pins, Screws & Detents Trunnions Surplus Barrels Magazine Parts See All →

1911 Parts AR Parts Glock Parts HK G3/91 Parts CETME FN FAL Enfield Parts Mosin Nagant M53 Parts MG42 Parts MG34 DPM/DP28 HK21 PSL/FPK Parts US (922r) AK Parts VZ-58 Parts VZ61 Parts UZI M77 See All →

Rifle Scopes Reflex Sights Thermal Lights Slings & Sling Accessories Holsters Mag Pouches Bayonets & Sheaths Cleaning See All →

Backpacks First Aid Packaged Food Targets Law Enforcement Supplies See All →
Military Surplus
Accessories Bags Jackets Wet Weather Camping Pants Headwear Shirts Footwear Suits See All →

Jackets Accessories Headwear Pants Wet Weather Footwear Shirts Vests Uniform Jackets Underwear Sweaters Coveralls & Field Suits Patches & Insignia See All →

Bags & Pouches Camping Other Equipment Gun Accessories Tools Cleaning Kits Gas Masks Flashlights & Lights Straps & Rope Armour & Protection Ammo Cans Optics & Goggles First Aid See All →

Surplus Barrels Bayonets See All →

German Reproduction US Reproduction See All →
Parts Kits
Polish East German Bulgarian Romanian Other AK American Iraqi Tabuk Hungarian Yugo See All

Complete Rifle Kits Complete Pistol Kits Upper Parts Kits Lower Parts Kits See All

MP5 (German HK) AP5 (Turkish) Sten VZ61 Skorpion UZI M948 PPS-43 Vigneron Beretta PM12 M31 Suomi Kp44 PM63 Z70B Beretta 38/49 LF-57 M56 See All

MG42 1919 Browning Bren AA52 (French) SG-43 ZB-37 DPM M77 See All

FN FAL / L1A1 G3 / HK91 / CETME Colt M16 Galil VZ58 STG 57 (SIG 510) SIG 540-series Steyr AUG See All

Mauser Enfield G3 / CETME 1911 See All

Walther Smith & Wesson CZ / Czech Tokarev / TT See All

See All

We've sent you an email with a link to update your password.

Login

Please enter your e-mail and password:

Email

Password

Forgot your password?

New customer? Register

Reset your password

We will send you an email to reset your password.

Email

Home / Build Tools

Collection: Build Tools

Build Tools (198)

Build Tools (198)

Featured
Most relevant
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old

Sort by:

Filter:

Availability 0

Availability

In stock (111) In stock (111 products)
Out of stock (87) Out of stock (87 products)

In stock (111 products)
Out of stock (87 products)

Brand 0

Brand

Aim Sports (3) Aim Sports (3 products)
AK-Builder.com (7) AK-Builder.com (7 products)
Angstadt Arms (1) Angstadt Arms (1 product)
Apex Tactical Specialties (1) Apex Tactical Specialties (1 product)
Birchwood Casey (10) Birchwood Casey (10 products)
Borka Tools (5) Borka Tools (5 products)
Breakthrough Clean (4) Breakthrough Clean (4 products)
Centerfire Systems (4) Centerfire Systems (4 products)
Century Arms (1) Century Arms (1 product)
ChamberMade (1) ChamberMade (1 product)
DAC (1) DAC (1 product)
Double Star Corp. (2) Double Star Corp. (2 products)
Freedom Machine Works (1) Freedom Machine Works (1 product)
Geissele Automatics (1) Geissele Automatics (1 product)
Glock (1) Glock (1 product)
Griffin Armament (1) Griffin Armament (1 product)
LBE Unlimited (3) LBE Unlimited (3 products)
Leapers (1) Leapers (1 product)
Leupold (1) Leupold (1 product)
Luth-AR (4) Luth-AR (4 products)
Lyman (4) Lyman (4 products)
Magpul Industries (2) Magpul Industries (2 products)
Midwest Industries (4) Midwest Industries (4 products)
NcSTAR (8) NcSTAR (8 products)
Outdoor Connection (1) Outdoor Connection (1 product)
Pro-Shot (1) Pro-Shot (1 product)
ProMag (4) ProMag (4 products)
Real Avid (55) Real Avid (55 products)
ReCreator Blanks (15) ReCreator Blanks (15 products)
Rhineland Arms (1) Rhineland Arms (1 product)
Rival Arms (1) Rival Arms (1 product)
Sun Devil Mfg. (1) Sun Devil Mfg. (1 product)
TacFire (7) TacFire (7 products)
TandemKross (1) TandemKross (1 product)
Tapco (1) Tapco (1 product)
TruGlo (2) TruGlo (2 products)
UTG (1) UTG (1 product)
Wheeler (34) Wheeler (34 products)
Wheeler Engineering (1) Wheeler Engineering (1 product)
Yugoslavian (1) Yugoslavian (1 product)

Caliber/Gauge 0

Caliber/Gauge

5.45x39mm (1) 5.45x39mm (1 product)
7.62x39mm (3) 7.62x39mm (3 products)
5.56x45mm NATO (1) 5.56x45mm NATO (1 product)
223 Rem, 5.56 NATO (1) 223 Rem, 5.56 NATO (1 product)
223 Remington, 5.56 NATO (1) 223 Remington, 5.56 NATO (1 product)
5.45x39mm, 7.62x39mm, 5.56x45mm NATO (1) 5.45x39mm, 7.62x39mm, 5.56x45mm NATO (1 product)
5.56x45mm NATO, .223 Remington (1) 5.56x45mm NATO, .223 Remington (1 product)

5.45x39mm (1 product)
7.62x39mm (3 products)
5.56x45mm NATO (1 product)
223 Rem, 5.56 NATO (1 product)
223 Remington, 5.56 NATO (1 product)
5.45x39mm, 7.62x39mm, 5.56x45mm NATO (1 product)
5.56x45mm NATO, .223 Remington (1 product)

Firearm Fit 0

Firearm Fit

22 LR, 22 Short, 22 Long (1) 22 LR, 22 Short, 22 Long (1 product)
AK (1) AK (1 product)
AK-12, AK-15, AK-19 (1) AK-12, AK-15, AK-19 (1 product)
AK-47 (2) AK-47 (2 products)
AK-47, AK-74 (5) AK-47, AK-74 (5 products)
AK-47, AK-74, PKM, SKS (1) AK-47, AK-74, PKM, SKS (1 product)
AK-47, AKM (1) AK-47, AKM (1 product)
AK-74 (1) AK-74 (1 product)
AKM (2) AKM (2 products)
AR-10 (3) AR-10 (3 products)
AR-10, AR-15 (1) AR-10, AR-15 (1 product)
AR-10, AR-15, DPMS LR-308, SR-25 (1) AR-10, AR-15, DPMS LR-308, SR-25 (1 product)
AR-10, Armalite, DPMS, Remington, SR-25 (1) AR-10, Armalite, DPMS, Remington, SR-25 (1 product)
AR-15 (47) AR-15 (47 products)
AR-15, 1911 (1) AR-15, 1911 (1 product)
AR-15, AR-Platform (1) AR-15, AR-Platform (1 product)
AR-15, AR-10 (5) AR-15, AR-10 (5 products)
AR-15, AR-10, LR-308 (1) AR-15, AR-10, LR-308 (1 product)
AR-15, AR-308 (1) AR-15, AR-308 (1 product)
AR-15, AR Platform (1) AR-15, AR Platform (1 product)
AR-15, LR-308 (6) AR-15, LR-308 (6 products)
AR-15, M16 (9) AR-15, M16 (9 products)
AR-15, M16, M15 (1) AR-15, M16, M15 (1 product)
AR-15, M16, M4 (1) AR-15, M16, M4 (1 product)
AR-15, M4 (5) AR-15, M4 (5 products)
AR-15, M4, M16 (5) AR-15, M4, M16 (5 products)
AR-Platform (13) AR-Platform (13 products)
Enfield, Mauser (1) Enfield, Mauser (1 product)
Glock (2) Glock (2 products)
Glock Gen 4, Glock Gen 5, G44 (1) Glock Gen 4, Glock Gen 5, G44 (1 product)
M4, CAR-15, Carbine (1) M4, CAR-15, Carbine (1 product)
M70 Series (1) M70 Series (1 product)
Pistols, Long Guns (1) Pistols, Long Guns (1 product)
PPS-43 (1) PPS-43 (1 product)
Rifle, Shotgun, Pistol (1) Rifle, Shotgun, Pistol (1 product)
Ruger 10/22 (1) Ruger 10/22 (1 product)
SKS (1) SKS (1 product)
Universal (5) Universal (5 products)

22 LR, 22 Short, 22 Long (1 product)
AK (1 product)
AK-12, AK-15, AK-19 (1 product)
AK-47 (2 products)
AK-47, AK-74 (5 products)
AK-47, AK-74, PKM, SKS (1 product)
AK-47, AKM (1 product)
AK-74 (1 product)
AKM (2 products)
AR-10 (3 products)
AR-10, AR-15 (1 product)
AR-10, AR-15, DPMS LR-308, SR-25 (1 product)
AR-10, Armalite, DPMS, Remington, SR-25 (1 product)
AR-15 (47 products)
AR-15, 1911 (1 product)
AR-15, AR-Platform (1 product)
AR-15, AR-10 (5 products)
AR-15, AR-10, LR-308 (1 product)
AR-15, AR-308 (1 product)
AR-15, AR Platform (1 product)
AR-15, LR-308 (6 products)
AR-15, M16 (9 products)
AR-15, M16, M15 (1 product)
AR-15, M16, M4 (1 product)
AR-15, M4 (5 products)
AR-15, M4, M16 (5 products)
AR-Platform (13 products)
Enfield, Mauser (1 product)
Glock (2 products)
Glock Gen 4, Glock Gen 5, G44 (1 product)
M4, CAR-15, Carbine (1 product)
M70 Series (1 product)
Pistols, Long Guns (1 product)
PPS-43 (1 product)
Rifle, Shotgun, Pistol (1 product)
Ruger 10/22 (1 product)
SKS (1 product)
Universal (5 products)

Condition 0

Condition

New (7) New (7 products)
New Old Stock (1) New Old Stock (1 product)

New (7 products)
New Old Stock (1 product)

Color 0

Color

Black (58) Black (58 products)
Black / Gray (1) Black / Gray (1 product)
Black / Green (2) Black / Green (2 products)
Black / Orange (1) Black / Orange (1 product)
Black / Red (15) Black / Red (15 products)
Black / Silver (1) Black / Silver (1 product)
Black / Stainless (1) Black / Stainless (1 product)
Black / Yellow (3) Black / Yellow (3 products)
Blue (5) Blue (5 products)
Desert Tan (1) Desert Tan (1 product)
Gray (6) Gray (6 products)
Gray / Red (8) Gray / Red (8 products)
Green/Black (1) Green/Black (1 product)
Multi (1) Multi (1 product)
Natural (1) Natural (1 product)
Red (5) Red (5 products)
Red / Black (2) Red / Black (2 products)
Red / Gray (1) Red / Gray (1 product)
Silver (9) Silver (9 products)
Yellow (1) Yellow (1 product)

Black (58 products)
Black / Gray (1 product)
Black / Green (2 products)
Black / Orange (1 product)
Black / Red (15 products)
Black / Silver (1 product)
Black / Stainless (1 product)
Black / Yellow (3 products)
Blue (5 products)
Desert Tan (1 product)
Gray (6 products)
Gray / Red (8 products)
Green/Black (1 product)
Multi (1 product)
Natural (1 product)
Red (5 products)
Red / Black (2 products)
Red / Gray (1 product)
Silver (9 products)
Yellow (1 product)

Country of Mfg. 0

Country of Mfg.

USA (24) USA (24 products)
Yugoslavia (1) Yugoslavia (1 product)

USA (24 products)
Yugoslavia (1 product)

Price

The highest price is $321.99

Under $50
$50 – $100
$100 – $250
$250 – $500
$500 – $1,000
Over $1,000

FFL Required 0

FFL Required

No (1) No (1 product)

No (1 product)

Sort by:

Home Bestsellers New Arrivals Firearms Ammunition Military Surplus C&R Eligible Parts and Accessories Magazines Parts Kits Contact

Filter and sort Filter

Filter and sort

Filter

198 products

Availability

In stock (111 products)
Out of stock (87 products)

Clear

Brand

Clear

Caliber/Gauge

5.45x39mm (1 products)
7.62x39mm (3 products)
5.56x45mm NATO (1 products)
223 Rem, 5.56 NATO (1 products)
223 Remington, 5.56 NATO (1 products)
5.45x39mm, 7.62x39mm, 5.56x45mm NATO (1 products)
5.56x45mm NATO, .223 Remington (1 products)

Clear

Firearm Fit

22 LR, 22 Short, 22 Long (1 products)
AK (1 products)
AK-12, AK-15, AK-19 (1 products)
AK-47 (2 products)
AK-47, AK-74 (5 products)
AK-47, AK-74, PKM, SKS (1 products)
AK-47, AKM (1 products)
AK-74 (1 products)
AKM (2 products)
AR-10 (3 products)
AR-10, AR-15 (1 products)
AR-10, AR-15, DPMS LR-308, SR-25 (1 products)
AR-10, Armalite, DPMS, Remington, SR-25 (1 products)
AR-15 (47 products)
AR-15, 1911 (1 products)
AR-15, AR-Platform (1 products)
AR-15, AR-10 (5 products)
AR-15, AR-10, LR-308 (1 products)
AR-15, AR-308 (1 products)
AR-15, AR Platform (1 products)
AR-15, LR-308 (6 products)
AR-15, M16 (9 products)
AR-15, M16, M15 (1 products)
AR-15, M16, M4 (1 products)
AR-15, M4 (5 products)
AR-15, M4, M16 (5 products)
AR-Platform (13 products)
Enfield, Mauser (1 products)
Glock (2 products)
Glock Gen 4, Glock Gen 5, G44 (1 products)
M4, CAR-15, Carbine (1 products)
M70 Series (1 products)
Pistols, Long Guns (1 products)
PPS-43 (1 products)
Rifle, Shotgun, Pistol (1 products)
Ruger 10/22 (1 products)
SKS (1 products)
Universal (5 products)

Clear

Condition

New (7 products)
New Old Stock (1 products)

Clear

Color

Black (58 products)
Black / Gray (1 products)
Black / Green (2 products)
Black / Orange (1 products)
Black / Red (15 products)
Black / Silver (1 products)
Black / Stainless (1 products)
Black / Yellow (3 products)
Blue (5 products)
Desert Tan (1 products)
Gray (6 products)
Gray / Red (8 products)
Green/Black (1 products)
Multi (1 products)
Natural (1 products)
Red (5 products)
Red / Black (2 products)
Red / Gray (1 products)
Silver (9 products)
Yellow (1 products)

Clear

Country of Mfg.

USA (24 products)
Yugoslavia (1 products)

Clear

Price

The highest price is $321.99

Under $50
$50 – $100
$100 – $250
$250 – $500
$500 – $1,000
Over $1,000

Clear

FFL Required

No (1 products)

Clear

Sort by:

Clear all

198 products

Quickshop The Real Avid Master-Fit 5-Piece Crowfoot Wrench Set is a purpose-built gunsmithing...

Real Avid Master-Fit 5-Pc Crowfoot Wrench Set AR-Platform w/ Heavy Duty Torque Handle

Regular price $138.99

Add to Cart
Quickshop The Real Avid Lug-Lok Upper Vise Block is a shop fixture purpose-built...

Real Avid Lug-Lok Upper Vise Block for AR-10 - 7075-T6 Aluminum w/ Stainless Steel Pins

Regular price $113.99

Add to Cart
Quickshop The Real Avid Smart Torq is a purpose-built torque driver engineered specifically...

Real Avid Smart Torq Torque Wrench

Regular price $67.99

Add to Cart
Quickshop The Real Avid Master-Fit Muzzle Device Wrench is a precision bench tool...

Real Avid Master-Fit Muzzle Device Wrench 3/4" Titanium/Stainless Steel AR-Platform Free-Float

Regular price $29.99

Add to Cart
Quickshop The Real Avid Master-Fit Barrel Nut Wrench is a purpose-built gunsmithing tool...

Real Avid Master-Fit 1-1/8" Barrel Nut Wrench AR Free-Float - Titanium/Stainless Steel

Regular price $29.99

Add to Cart
Quickshop The Real Avid Master-Fit Muzzle Device Wrench is a purpose-built gunsmithing tool...

Real Avid Master-Fit Muzzle Device Wrench 5/8" AR-Platform Titanium/Stainless Steel Free-Float Handle

Regular price $29.99

Add to Cart
Quickshop The Real Avid Master-Fit Barrel Nut Wrench is a purpose-built gunsmithing tool...

Real Avid Master-Fit Barrel Nut Wrench 1-5/16" AR-Platform Free-Float Titanium/Stainless Steel

Regular price $29.99

Add to Cart
Quickshop The Real Avid Master-Fit 3 Prong Flash Hider Wrench is a dedicated...

Real Avid Master-Fit 3 Prong Flash Hider Wrench - Titanium/Stainless Steel AR-Platform

Regular price $29.99

Add to Cart
Quickshop The Real Avid Armorer's Master Vice is the first bench vise purpose-built...

Real Avid Armorer's Master Vice Gray/Red with TORQ-LOK & Reversible Gun-Fit Sleeves

Add to Wishlist
Quickshop The Real Avid Master-Fit Free Float Barrel Nut Wrench is a precision...

Real Avid Master-Fit Free Float Barrel Nut Wrench - Titanium/Stainless Steel for AR-Platform

Regular price $29.99

Add to Cart
Quickshop The Real Avid Master-Fit Delta Ring Barrel Nut Wrench is a purpose-built...

Real Avid Master-Fit Delta Ring Barrel Nut Wrench - Titanium/Stainless Steel for AR-Platform

Regular price $29.99

Add to Cart
Quickshop The Real Avid Master-Fit Barrel Nut Wrench is a purpose-built tool designed...

Real Avid Master-Fit Barrel Nut Wrench 1-1/4 in Titanium AR-Platform Free-Float

Regular price $29.99

Add to Cart
Quickshop The Real Avid Master-Fit Barrel Nut Wrench is a purpose-built gunsmithing tool...

Real Avid Master-Fit Barrel Nut Wrench 30mm Titanium/Stainless Steel AR-Platform Free-Float Handle

Add to Wishlist
Quickshop The Real Avid Accu-Punch Hammer & Punch Set is a purpose-built gunsmithing...

Real Avid Accu-Punch Hammer & Punch Set Brass/Nylon/Steel Universal

Regular price $46.99

Add to Cart
Quickshop The Birchwood Casey Trigger Scale is a precision gunsmithing tool built to...

Birchwood Casey Trigger Scale 0-11 lbs Red Anodized Aluminum Body Stainless Steel Trigger Pull Rubber Black Handle

Add to Wishlist
Quickshop The Birchwood Casey Pro Screwdriver Kit is a comprehensive 40-piece gunsmithing tool...

Birchwood Casey Pro Screwdriver Kit 40-Piece Slotted/Phillips/Torx/Hex Bit Set

Regular price $22.99

Add to Cart
Quickshop The Birchwood Casey DLXSDS Master Screwdriver Kit is an 84-piece precision tool...

Birchwood Casey DLXSDS Master Screwdriver Kit 84-Piece Slotted/Phillips/Torx/Hex

Add to Wishlist
Quickshop The TruGlo TG971B AR-15 Front Sight Tool is a compact armorer's tool...

TruGlo TG971B AR-15 Front Sight Tool 4/5-Prong Steel Black

Add to Wishlist
Quickshop The LBE Unlimited ARPSTL AR Pencil Sight Tool is a purpose-built gunsmithing...

LBE Unlimited ARPSTL AR Pencil Sight Tool AR-15 Black Steel

Regular price $10.99

Add to Cart
Quickshop The Lyman Pro Drive Torque Wrench is a precision gunsmithing tool calibrated...

Lyman Pro Drive Torque Wrench 10-80 in/lbs Black/Orange Steel Rubber Handle

Add to Wishlist

1
…
5
6
7
8
9
10

Join Our Email List

The next shipment is always around the corner.

Email Address *

Follow Centerfire Systems

Representative Hours:
Mon-Fri, 9am-5pm ET
Saturday, 9am-2pm ET

Need Help? 800-950-1231

© 2026 Centerfire Systems

Contests
Layaway
Need Help?
General Info
Terms & Conditions
Shipping Restrictions
Shipping & Returns
Contact Us
Blog
Become A Dealer
All Products

Centerfire's Bestsellers
New Arrivals
Firearms
Ammunition
Military Surplus
C&R Eligible
Parts and Accessories
Magazines
Parts Kits
Clearance

Promag
Glock
View All Products

We specialize in the sale of firearms, C&R firearms, ammunition, magazines, military surplus, tactical gear and more. We stack them deep and sell them cheap so you can expect great prices on the things you need.

We use cookies to give you the best experience on our site. Privacy Policy

Home
Firearms
Ammunition
- Handgun Ammo
  - 9mm
  - .45 ACP
  - .380 ACP
  - .40 S&W
- Rifle Ammo
  - .223 / 5.56
  - 7.62x39
- Rimfire Ammo
- Shotshells
- Bulk Ammo
- Surplus Ammo
- Steel Case Ammo
- Reloading
- Blowout Ammo
- Brass Case Ammo
Military Surplus
C&R Eligible
Parts and Accessories
Magazines
Parts Kits
- AK Parts Kits
- AR Parts Kits
  - Upper Parts Kits
  - Lower Parts Kits
- SMG (Sub-Machine Gun)
  - AP5 - Turkish
  - Beretta 38/49
  - Beretta PM12
  - Kp44
  - LF-57 French
  - M31 Suomi
  - M56
  - M948
  - MP5 - German
  - PM63
  - PPS43
  - Sten
  - UZI
  - Vigneron
  - VZ61
  - Z70B
- LMG (Light Machine Gun)
  - 1919 Browning
  - AA52 French
  - Bren
  - CETME
  - Colt M16
  - FN FAL / L1A1
  - G3/HK91
  - Galil
  - HK21
  - M77
  - MG34
  - MG42
  - RPD
  - SG-43
  - SIG 500 series
  - Steyr Aug
  - STG 57
  - UK59
  - VZ58
  - ZB37
  - DPM
- Conversion Kits .45 ACP
  - Mauser
  - G3/Cetme
  - Enfield
- Modern Handgun Parts Kits
- Modern Rifle Parts Kits
Login / Register

choosing a selection results in a full page refresh

Quantity

SKU:

Type:

Vendor: