What is Lone Wolf Arms?

Founded in 1998, Lone Wolf Arms is the largest US manufacturer and distributor of Glock-compatible aftermarket parts. Based in Boise, ID, they make barrels, frames, slides, triggers, guide rods, recoil springs, firing pins, conversion barrels, and completion kits for Glock Gen 3/4/5 and SIG P365, P365XL, P320.

Does Lone Wolf make barrels for the Glock 19?

Yes. Standard and threaded (1/2x28, 9mm) drop-in barrels in AlphaWolf and DUSK series.

Does Lone Wolf make barrels for the Glock 17?

Yes. Standard, threaded (1/2x28), and longslide (G17L/G34) AlphaWolf drop-in barrels. No gunsmithing required.

What is the Timberwolf frame?

A proprietary Glock-compatible frame in full-size (TWF), compact (TWC), and large (TWL). Sold bare or complete, textured or standard. Accepts standard Glock internals and magazines.

Lone Wolf's complete Glock 19-compatible pistol. DUSK frames also sold separately in compact and full-size, built or bare, black or gray.

Does Lone Wolf make frame completion kits for Polymer80?

Yes - for P80 large (10/45) and compact frames. Includes trigger bar, connector, trigger housing, locking block, magazine catch, slide stop, and all pins.

What guide rod options are available?

Complete assemblies for Glock Gen 1-4, extended and stainless options for G29/30/36. ISMI springs in 13, 15, 17, and 22 lb weights.

How does a Lone Wolf 9mm conversion barrel work?

Drops into .40 S&W or .357 SIG Glocks with no gunsmithing. Use a 9mm magazine. Use 124gr or +P ammo if experiencing FTE with 115gr.

What is the difference between a 3.5 lb and 5 lb connector?

3.5 lb = lightest pull, longest reset. 5 lb = shorter, crisper reset. 8 lb = shortest, most positive reset.

Does Lone Wolf make parts for Glock 20 and 21?

Yes - barrels in 10mm, .40, and .45 ACP; frame completion kits (Gen3/4); trigger bars; firing pins; guide rods; slide completion kits. Threaded 10mm barrel (9/16x24) also available.

Does Lone Wolf make parts for SIG Sauer pistols?

Yes - DAWN series drop-in 9mm barrels for SIG P365, P365XL, and P320 in black and graphite gray, standard and threaded. DAWN slides for P365XL also available.

What is the Elimin8r suppressor?

Lone Wolf's modular pistol suppressor ($299.95) for threaded barrels. NFA item - Form 4 and $200 tax stamp required.

Does Lone Wolf ship to California?

Parts sales to CA residents are temporarily paused. Barrels ship to CA FFL dealers.

Can I cancel or modify an order?

30-minute window after ordering. Email Cancel@LoneWolfArms.com or call 208-448-0600. Custom/engraving orders take 2-4 weeks; black oxide 2-6 weeks.

What is Lone Wolf's barrel warranty?

Warranted for workmanship and materials with factory new ammo. Reloaded or commercial reloaded ammo voids the warranty. FFL items cannot be returned.

How do I become a dealer?

Visit lonewolfdist.com/become-a-dealer or email DealerSales@LoneWolfArms.com.

AlphaWolf Barrel For Glock 20L/40 .40S&W 6"

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AlphaWolf Barrel For Glock 20L/40 .40S&W 6"

1 review Write a Review

SKU: AW-20L40

UPC: 639737069921

Availability: California Customers: Due to California laws AB-1263 and SB-704, this item must be shipped to a dealer.

Barrel Length: 6.02in (153mm)

Caliber: 40sw

$134.95

Hurry up! Current stock:

Current Stock: 65

Quantity:

5 customers are viewing this product

Product Details

Length 6.02 inch, 153 mm
Alpha Wolf barrels establish the benchmark for absolute accuracy and combat reliability. It is the pinnacle of what every other barrel manufacturer strives to be.

Barrel Features:

PROUDLY MADE IN THE USA!!
Fits all Glock through Gen 4. Does NOT fit Gen 5.
Designed for lead, plated, or jacketed ammunition
Certified, stress relieved 416 stainless steel
Button rifled, three stage honed bore
Industry recognized SBN premium coating (SBN is Salt Bath Nitride, similar to Tennifer)
Heat treated to RC 40-42, then SBN coating increases surface hardness to RC 60
Exacting tolerances allow for drop in installation
Fluting creates path for heat and debris to escape

Due to SBN coating we are unable to custom chamber or custom crown Alpha Wolf barrels.

Customer reviews (1)

Write a Reviews

AlphaWolf Barrel For Glock 20L/40 .40S&W 6" 5

Posted by Jason Johnston on 26th Sep 2026

Great craftsmanship. Installed and operated with no issues. Plenty of room for adding ports. After a morning at the range it ppears my wife has officially claimed ownership and ibwill have to build another.