Gun Cleaning Adapter.com
Solvent Trap Adapter
Prices reduced, and items are selling out!

Currently Available In:

product
  • The new design FITS BETTER than any other NAPA 4003 adapter on the market. Nearly flush fit, compared to all the others that are available on eBay. Just read their descriptions! Not sure what I mean? Just look at the pictures below.
  • Black Mil-Spec coating (MIL-C-13924C).
  • High quality carbon steel construction with threading through the entire adapter body. We use the good stuff, made in the USA, machined in the USA, by Americans. This is not cast metal or a redrilled cap found on many auction items. Your items start as a solid piece of hex-shaped steel. We work our magic from there.
  • Smaller and lighter design - 15% less weight, and 35% shorter than the original.
  • Expedited shipping is FREE via USPS First Class and includes tracking (includes HI, AK, and US territories!).
  • All threads are tested to ensure quality. Both inside and out are tested before shipping to ensure that everything fits perfectly.
    A FREE protective cap for outside threads is included too!
  • Works with NAPA 4003 clones: NAPA 4744, WIX 24003, and WIX 24744.
  • Don't forget to purchase your end caps! (HERE)
$12.50
AR-15 5.56mm/.223 Rem
AR-15 style rifles
1/2-28 x 3/4 NPT

PRICE REDUCED! This black, flush-fit adapter will fit AR-15 style rifles in 5.56mm/.223 REM, most threaded Ruger 10/22 barrels (22 Charger, etc.), and the Ruger 22/45 pistol. The threads on this adapter are not cut but formed using a 'roll tap' creating a tool-hardened thread. This will fit anything that has a 1/2-28 threading, but please verify this is the correct thread pattern for your barrel!

$15.00
SOLD OUT! AR-15 9mm
9mm AR-15 style rifles
1/2-36 x 3/4 NPT

SOLD OUT! Many have asked for this 1/2-36 threading for your 9mm AR15 style rifles, and now it's available! Don't forget that this will also fit anything else that uses the 1/2-36 threading, but always verify this is the correct thread pattern for your barrel! The threads on this adapter are not cut but formed using a 'roll tap' creating a tool-harded thread.

$12.50
SOLD OUT! AR-10 .308 NATO
AR-10 .308/.300 Blackout style rifles
5/8-24 x 3/4 NPT

SOLD OUT! This black,flush-fit adapter will fit AR-10 style rifles firing .308 NATO (7.62x51) and some others firing the .300 Blackout that have 5/8-24 threading. From what I've read, though I have no proof, the M1A rifle (civilian M-14) which also fires the .308 NATO round does not have this thread pattern. I'm sure that this will fit other rifles but I can't guarantee this. Please verify this is the correct thread pattern for your barrel!

$13.50
FN FAL & Clones .308
CETME/HK91/PTR91 style rifles
9/16-24 LH x 3/4 NPT

NEW DESIGN, PRICE REDUCED! This black, flush-fit adapter will fit your FN/FAL 7.62x51/.308 military style rifles. This is a LEFT HAND thread (9/16-24 LH)! Please verify this is the correct thread pattern for your barrel!

$12.50
AK-47 7.62x39
AK-47 style rifles
M14x1 LH x 3/4 NPT

PRICE REDUCED! This black, flush-fit adapter will fit most AK-47 style rifles firing 7.62x39 (M14x1 Left Hand threading). Please verify this is the correct thread pattern for your barrel!

$12.50
CETME & Clones .308
CETME/HK91/PTR91 style rifles
M15x1 RH x 3/4 NPT

PRICE REDUCED! This black,flush-fit adapter will fit most CETME / HK91 / PTR91 style 7.62x51/.308 military style rifles. This is a RIGHT HAND metric thread (M15x1). Please verify this is the correct thread pattern for your barrel!

$13.50
Mac-10 / Mac-11 & Clones
Mac-10 / Mac-11
3/4-10 x 3/4 NPT

PRICE REDUCED! This black,flush-fit adapter will fit your Ingram or Cobray Mac-10, Mac-11, Max-11, and other clones in 9mm, .40. Please verify this is the correct thread pattern for your barrel!

$12.50
.45ACP
45ACP - 1911, Glock21, etc.
.578-28 x 3/4 NPT

PRICE REDUCED! This black, flush-fit adapter will fit popular 45 ACP handguns, including some 1911, some Glock, Sig, HK models (see below too). If you have an aftermarket threaded barrel from Lone Wolf, Storm Lake, etc. with this threading it'll work perfectly too. I'm sure that this adapter will fit other handguns, but please verify this is the correct thread pattern for your barrel!

$12.50
SOLD OUT! .45ACP (HK, G21)
HK USP, Glock, AAC, Storm Lake aftermarket barrels
M16x1 LH x 3/4 NPT

SOLD OUT! This black,flush-fit adapter will fit the Glock 21 factory threaded barrel, H&K USP 45, and many aftermarket barrels (AAC, Storm Lake). This is a LEFT HAND metric thread (M16x1 LH). Please verify this is the correct thread pattern for your barrel!

$12.50
9mm /.40 S&W
9mm/.40
9/16-24 x 3/4 NPT

PRICE REDUCED! This black, flush-fit adapter will fit popular 9mm / .40S&W handguns, including aftermarket barrels. I'm sure that this adapter will fit others, but please verify this is the correct thread pattern for your barrel!

$12.50
9mm Glock, Sig Sauer, H&K
9mm Euro Std
M13.5x1 LH x 3/4 NPT

PRICE REDUCED! This black, flush-fit adapter is designed for the European Standard 9mm barrel threading and will fit popular 9mm pistols (Glock 17, 19, Sig Sauer P226, P229, P250, H&K USP) and other aftermarket barrels. I'm sure that this adapter will fit others, but please verify this is the correct thread pattern for your barrel!

$13.50
Ruger 10/22 Adapter
ruger 10/22 solvent trap adapter
BLACK 13/16-16 x 3/4 NPT

PRICE REDUCED! Black, flush-fit adapter. My Ruger 10/22 friends asked for this because their barrel clamp adapters do not have the correct threads to use the NAPA 4003. Typically these Ruger clamp adapters have male 13/16-16 threads, and my adapter will mount onto this and allow you to use the NAPA 4003 for your solvent trap. It's an adapter for your adapter, and you get the best of both worlds! Any of your adapters that have a male 13/16-16 threading will work with this. Please verify this is the correct thread pattern for your barrel and your existing adapter!

$13.50
Oil Filter Adapter
oil filter solvent trap adapter
3/4-16 x 3/4 NPT

PRICE REDUCED! Black, flush-fit adapter. Many of us already have an oil filter solvent trap adapter with 3/4-16 threads. Using your current adapter that has straight threads with the NAPA 4003 type filter won't correctly fit. My 3/4-16 x 3/4 NPT adapter (straight threads to tapered threads) will allow you to use your existing adapter and also use the NAPA 4003 for your solvent trap! It's an adapter for your adapter! Any of your adapters that have a male 3/4-16 threading will work with this too! Please verify this is the correct thread pattern for your barrel and your existing adapter!