Christian Craighead's Nairobi Rifle: The L119A2, Part by Part

The Photograph That Started It All

On 15 January 2019, five al Shabaab gunmen attacked the DusitD2 hotel and office complex in the Westlands district of Nairobi. Twenty one civilians were killed. A British SAS soldier who was in the country on a training role heard the gunfire, went back to his vehicle for his kit, and walked into the complex alone. Over roughly twelve hours he worked alongside Kenyan RECCE Company officers and other responders, and more than 700 people were brought out of the building.

Al Shabaab is a Somali group, and Kenya shares roughly 680 km of border with Somalia. Geometry: Natural Earth (public domain).

Westlands, Nairobi, the district the complex sits in. Photo: Rosiestep, CC BY-SA 4.0, via Wikimedia Commons.

Someone photographed him crossing the courtyard. Balaclava, plate carrier, jeans, and a short barrelled carbine nobody in the gun world had ever seen a clear picture of before. That photo did two things at once. It made Christian Craighead famous under the nickname the internet gave him, and it gave the firearms community its first detailed public look at the L119A2, the rifle that had replaced the SAS L119A1 and had only existed as rumour since 2016.

He was awarded the Conspicuous Gallantry Cross, one level below the Victoria Cross.

The ground the nineteen hours played out on, laid out the way a site study would be. Real elevation, real footprints, a 250 m grid and 250/500/1000 m range rings draped on the terrain, coordinates and MGRS in the data block, and a confidence table that says plainly what is known and what is not. Terrain height is exaggerated 2.5x. No route, entry point or interior movement is depicted, because none has been published. Elevation: Mapzen/AWS Terrain Tiles (SRTM, public domain). Buildings, roads and river: © OpenStreetMap contributors, ODbL.

Solid markers are documented clock times. Hollow markers are events whose sequence is reported but whose exact time was never published, including when Craighead went in.

Where the Story Stands in 2026

The kit is only half of why people search for this rifle. The other half is what happened afterwards.

Craighead wrote a memoir about Nairobi called One Man In. The Ministry of Defence refused publication authority in July 2022 on national security grounds, citing the lifetime non disclosure undertaking that UK special forces personnel sign. His Article 10 free expression challenge was dismissed by the High Court in October 2023. On 10 September 2026 the MoD obtained an interim injunction against him, served while he was recording an interview with Shawn Ryan. The American edition was published on 15 September 2026 regardless.

He has said the legal fight has cost him more than £130,000, that he sold his medals partly to pay for it, and that he believes returning to Britain could mean arrest. He retired from the Army in September 2020 and now lives in the United States.

The Shawn Ryan interview

The injunction landed while he was sitting in a podcast studio. Shawn Ryan Show episode 339, "The Uncensored Story of the Nairobi DusitD2 Attack", released in September 2026, runs about five hours and is the first time he has told the story at length himself. Ryan raised the email about the injunction during the recording.

He is joined for part of it by Meyli Chapin, an American who was in the complex that day and spent seventeen hours trapped in room 316. She wrote her own account, Terrorist Attack Girl. If you want the human side rather than the kit, that episode and her book are the primary sources, not this guide.

He posts as @christian_craighead on Instagram and @one_man_in on X. Both are worth following if this guide interested you, and both are his own words rather than anyone else's reading of a photograph.

The Rifle: Colt Canada L119A2

A British Royal Marine with a Colt Canada C8, the L119A1 generation of the same family. Photo: U.S. Marine Corps, Master Sgt. Chad McMeen (public domain).

The L119A2 is built by Colt Canada, the company that was Diemaco until 2005 and that has supplied the UKSF carbine since the L119A1 in the late 1990s. It is procured in two barrel lengths, a 10 inch and a 15.7 inch, and operators were issued both.

The defining feature is the upper. Colt Canada calls it the IUR, which owners render as both Improved and Integrated Upper Receiver, and it is built on LMT patented technology under licence. The LMT patent number is stamped on the side of the receiver, which is how the connection was confirmed by people who have handled one. Instead of an upper with a handguard bolted on around the barrel, the receiver and the full length rail are a single piece, and the barrel clamps into it. A user can change from the 10 inch CQB barrel to the 15.7 inch barrel without an armourer and without losing zero on a rail mounted optic. That is the whole design argument for the platform, and it is why a genuine clone starts with the upper and not the barrel.

The UK contract version has one feature no other IUR has: a lug for the HK 40mm grenade launcher on the underside. It is unique to the British guns, it is the reason an M203 will not fit, and owners describe it as sharp and in the way when you carry the rifle by the magwell. The Canadian C8 IUR is the same upper without it.

Craighead was carrying the 10 inch configuration, which is the sensible choice for a man going into hotel corridors.

The Complete Parts List

The problem, not the place. A training corridor, not the DusitD2, but the same geometry: long, narrow, doors on both sides and people behind them. This is what a 10 inch barrel, a red dot and a light are for. Photo: U.S. Air Force, Senior Airman Milton Hamilton, 435th Security Forces Squadron (public domain).

What This Guide Can and Cannot Give You

The exact rifle is not buyable. Colt Canada does not sell L119A2 uppers to the US civilian market, and the specific 10 inch Colt Canada barrel is not a commercial item. What is available is the LMT MRP, the same monolithic quick change barrel architecture that Colt Canada licensed, sold on the US market by the company that designed it.

So this build is honest about two tiers:

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Upper Receiver Group

Upper receiver. You cannot simply buy the real thing. Colt Canada IUR uppers reach the civilian market only as Canadian contract over runs, and ITAR makes importing one into the United States a problem rather than a purchase. The LMT MRP-L is the US market expression of the licensed monolithic upper. The 9.25 inch M-LOK carbine length is the closest match to the proportions in the Nairobi photo.

Barrel. The issued barrel is exactly 10 inches, heavy profile, 1:7 chrome lined hammer forged with a tapered bore, on a low profile carbine length gas system. The gas block is not pinned. It indexes on two machined flats and is held by two set screws, and the gas tube is straight and pulls out the front. Owners report the gun is very over gassed with the suppressor fitted, which is worth knowing before you copy the gas port.

LMT's monolithic quick change barrels come in 10.5 inch and 11.5 inch, and the 10.5 is the closest available. It drops into the MRP upper and clamps with the locking screws.

Bolt carrier group. LMT's full auto profile carrier is the same part family used in the issued guns, and the enhanced bolt is LMT's own upgrade over mil spec.

Optic

The confirmed identification is a SIG Sauer ROMEO4T in FDE, running the ballistic circle dot reticle with the solar backup panel on top, mounted on a lower third spacer. This was the detail that surprised people most. A red dot that had been on the US commercial market for a couple of years was riding on a rifle nobody had confirmed existed.

The optic sat higher than a normal lower third mount because of a LaRue RISR, a stock mounted riser that raises the cheek weld to meet an elevated optic. GPP does not stock the RISR. A Magpul CTR cheek riser on the CTR stock achieves a similar cheek position on a budget, and it is the part most clone builders actually end up running.

Laser and Light

Laser. An L3Harris LA-5B/PEQ-15 sat forward of the optic. The high power military version is restricted to law enforcement and military purchasers. The ATPIAL-C is the commercial version of the same unit, same body, civilian legal IR output.

Light. A SureFire M620 Scout with an IR filter fitted, on a SureFire RM45L offset mount in tan. The mount was first called an HSP Thorntail and later corrected, and it is the detail gear watchers point to as the one that made this setup distinctive rather than generic. The M620 is discontinued and GPP does not list the RM45L. The M640U Scout Light Pro is SureFire's current equivalent light in the same mounting family.

Lower Receiver Group

Trigger. The A2 buy replaced the A1's mil spec trigger with a Geissele, which is the one upgrade every source agrees on. Owners of the commercial uppers name it specifically as the SSF, the select fire version, though the model has never been publicly confirmed. What reference photographs actually show is the Geissele logo on the trigger, not a model number. The semi auto equivalent on the commercial market is the Geissele SSA, which is the same two stage feel in a trigger you can legally fit.

Charging handle. A Colt Canada ambidextrous handle with the distinctive cut down latch, where a lever on the ejection side releases the opposite latch. Owners report it snags on kit and breaks its roll pin, which is why some swap it out. Nobody sells it on the US market. Any quality ambi handle fills the role.

Stock. A Magpul CTR, with the riser mounted on it. Nothing exotic, and one of the few parts on the rifle you can buy in the correct specification for under fifty dollars.

Grip. An ERGO grip, the original overmoulded pattern with the finger grooves. ERGO's SureGrip is the current production version of that grip.

Sling. A Frank Proctor sling in Multicam, which was noted at the time as unusual because it had not been seen on previously documented L119A2s. The earliest breakdown guessed a Magpul MS3 and that guess is the one still copied around the internet. GPP does not list Proctor. If you want a buyable two point that does the same job, the MS3 is the honest stand in, not the correct part.

Rear sling point. A Magpul ASAP plate. Owners of the platform state plainly that the ASAP is the issued endplate on the L119A2, so this is one of the few parts that is both correct and cheap and which the people who actually run these rifles are close to unanimous in disliking. It is correct, and it is cheap.

Magazines. Magpul PMAG Gen 3, in FDE or coyote rather than black. GPP does not list a Gen 3 in 30 rounds. The closest listing is the older Gen M2 MOE in black, which is the right magazine family and the wrong generation and colour.

Muzzle

The rifle wore a SureFire FA556SA suppressor over a SureFire FH556-216A flash hider, both confirmed off a privately owned example of the same upper.

The FA556SA is out of production, and this is where a clone hits a wall. SureFire's current 5.56 can is the SOCOM556 RC4, but it uses the later SOCOM mount, not the Fast Attach interface the FA556SA used. You cannot hang the modern can on the period correct hider. Buy the can and its matching SOCOM series muzzle device as a pair, and accept that the muzzle is an equivalent rather than a match.

Sidearm

His pistol was an L131A1, which is the British service designation for the Glock 17 Gen 4. The MoD bought more than 25,000 of them on a £9 million contract in 2013 to replace the Browning Hi Power.

The L131A1 as the Ministry of Defence photographs it. Photo: Steve Dock / UK MOD, Open Government Licence v1.0.

Police trade in Gen 4 G17s are the cheapest honest route to one.

The Kit He Was Wearing

GPP is a parts catalogue, not a gear shop, so none of this is in our listings. It is here because it is half of what people are actually looking for when they search this loadout, and because the kit list is unusually well documented.

What a Working Clone Actually Costs

The MRP architecture is the expensive part. There is no budget path to a monolithic upper, because the reason the platform exists is the one part you cannot substitute.

Honest Sourcing

Two different kinds of evidence sit behind this guide, and they are not equally strong.

The rifle itself is well documented, because private owners in Canada bought L119A2 uppers from contract over runs and photographed them in detail. The barrel markings, the 10 inch length, the gas system, the grenade lug, the LMT patent stamp, the Colt Canada charging handle, the Geissele trigger and the SureFire FH556-216A flash hider all come from people holding the parts, not from squinting at a news photo.

Craighead's specific configuration comes from photo analysis alone. Nobody outside UKSF has the issue list, and the published breakdowns have quietly corrected themselves more than once:

Agreed by every source: the L119A2 itself, the 10 inch barrel, the LA-5B/PEQ-15, the Magpul CTR, the LaRue RISR, the ERGO grip, the Crye AVS, the Safariland 6354DO and a Glock sidearm.

Anyone selling you a "confirmed" parts list is selling you the same photograph you can look at yourself. The corrections above took the gear community seven months to converge on.

Sources

• The Reptile House Blog, In The Wild: UKSF SAS Loadout, Nairobi, January 2019, the original kit breakdown published the day after the attack
• Sandboxx News, Breaking down the Nairobi rifle of SAS Christian Craighead
• Refactor Tactical, The Christian Craighead Rifle used in Nairobi
• The Reptile House Blog, Confirmation Bias Part 3: SAS L119A2, Obi Wan Nairobi's Romeo 4T, the August 2019 post that corrected the optic identification to an FDE ROMEO4T, credited to Joe Jensen of STAS
• AR15.COM, The British Army L119A2, a two page thread including close up photographs and measurements from privately owned L119A2 uppers, the source for the barrel length, gas system, grenade lug, charging handle, flash hider, issued endplate and the 10.5 inch and "Gen 3" corrections
• Forgotten Weapons, L119A2: The New British SOF Rifle
• Shawn Ryan Show, episode 339, The Uncensored Story of the Nairobi DusitD2 Attack, September 2026, with survivor Meyli Chapin
• Court and press reporting on the One Man In injunction, September 2026

Images and credits

No photograph of Christian Craighead, of the attack, or of its aftermath appears anywhere on this page. Those images exist, and every one of them belongs to a news agency.