Developed in the 1960s and deployed in the 1970s, the Enfield L42A1 was an upgrade of the Number 4 Mark I (T) sniper rifle configured for use with 7.62x51 NATO ammunition, fitted with a high pressure bolt head and hammer forged target barrel. Additionally, Model 32 Mark III scopes were also upgraded to match the new caliber. About half of the approximately 900 rifles made were condemned and destroyed post-service by the Ministry of Defense. Blade front and ladder rear sights, the former properly lacking the fixed "battle sight" to accommodate the scope, with the receiver marked "L42A1D71." and "T", "M47C/1944/G32562" (M47C is BSA Shirley factory code) above "TR" on the socket, and "19T" on top of the extractor assembly and bolt handle. The scope body is finished in black and marked "1240-99-963-2063/TEL.STRT.STG.L1A1/OS 2429 G.A./No17502" with the original 32 MkIII markings correctly lined out, and the ring base marked "32562" to match the rifle. Smooth stock with the top of the wrist renumbered to match the scope, a raised cheekpiece, and brass buttplate. Included with the rifle is a green painted hardwood transport case, an extra scope mount, a green steel scope case hand painted to match both the scope and the rifle, green canvas sling, brown canvas rifle sleeve with black painted "ENGLAND", manual, cleaning tools, and a World War I leather wrapped brass spotting telescope marked "TEL. SIG. (Mk IV) ALSO G.S./R. & J. BECK. Ltd/LONDON/1915/No17660" next to a broad arrow acceptance mark. This spotting scope is correct to accompany this rifle as there were various patterns of spotting scopes issued. Traditionally carried by the "observer" (or spotter) in a 2-man sniper team, the Scout Regiment scope provided a high power optic that was very useful for spotting enemy forces that were either camouflaged or concealed in deep foliage, which could potentially include enemy snipers.

Extremely fine as arsenal overhauled, retaining 97% of the matte arsenal black finish, showing light wear and handling marks overall. The stock is also very fine as (arsenal) lightly sanded and re-oiled with some light handling marks. Both sets of optics are crisp, with the spotting scope exhibiting a pleasing golden aged patina, and the rifle scope retaining most of its black finish with a few areas of light flaking. The accessories are in fine order. Mechanically excellent.